What is the name of these little plastic things that protect wires from being cut into by the sharp edges of...











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What is the name of these little plastic things that protect wires from being cut into by the sharp edges of a drilled hole?



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  • 4




    In addition to all the good answers: if you are looking to purchase a grommet/bushing specifically for preventing someone damaging internal parts by pulling on the cable, you'll want to do a search for stress relief or strain relief bushing.
    – Eric Lippert
    11 hours ago















up vote
33
down vote

favorite
2












What is the name of these little plastic things that protect wires from being cut into by the sharp edges of a drilled hole?



enter image description hereenter image description here










share|improve this question




















  • 4




    In addition to all the good answers: if you are looking to purchase a grommet/bushing specifically for preventing someone damaging internal parts by pulling on the cable, you'll want to do a search for stress relief or strain relief bushing.
    – Eric Lippert
    11 hours ago













up vote
33
down vote

favorite
2









up vote
33
down vote

favorite
2






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What is the name of these little plastic things that protect wires from being cut into by the sharp edges of a drilled hole?



enter image description hereenter image description here










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What is the name of these little plastic things that protect wires from being cut into by the sharp edges of a drilled hole?



enter image description hereenter image description here







identification






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edited 18 hours ago









pipe

9,43042051




9,43042051










asked 19 hours ago









Zhro

554315




554315








  • 4




    In addition to all the good answers: if you are looking to purchase a grommet/bushing specifically for preventing someone damaging internal parts by pulling on the cable, you'll want to do a search for stress relief or strain relief bushing.
    – Eric Lippert
    11 hours ago














  • 4




    In addition to all the good answers: if you are looking to purchase a grommet/bushing specifically for preventing someone damaging internal parts by pulling on the cable, you'll want to do a search for stress relief or strain relief bushing.
    – Eric Lippert
    11 hours ago








4




4




In addition to all the good answers: if you are looking to purchase a grommet/bushing specifically for preventing someone damaging internal parts by pulling on the cable, you'll want to do a search for stress relief or strain relief bushing.
– Eric Lippert
11 hours ago




In addition to all the good answers: if you are looking to purchase a grommet/bushing specifically for preventing someone damaging internal parts by pulling on the cable, you'll want to do a search for stress relief or strain relief bushing.
– Eric Lippert
11 hours ago










4 Answers
4






active

oldest

votes

















up vote
79
down vote













That's a grommet, not to be confused with Grommit.



enter image description here



Grommit - of Wallace and Grommit fame.






share|improve this answer



















  • 3




    made my day :-)
    – Blup1980
    19 hours ago






  • 1




    Got our "funny" head on today? plus 1... :)
    – Solar Mike
    18 hours ago






  • 9




    Check the datasheet before buying them though, some are compatible with Wensleydale, some are not.
    – Wossname
    17 hours ago










  • this has to be one of the most versatile technical terms ever. I counted > 30 different meanings (interdisciplinary, not limited to EE) when translating to German only: dict.leo.org/englisch-deutsch/grommet
    – dlatikay
    13 hours ago








  • 1




    @dlatikay I only know of one meaning for the word "grommet": it's a thing placed around the inside of a hole, which protects the hole, or something passing through the hole, from wear. What else does it mean?
    – Tanner Swett
    10 hours ago


















up vote
38
down vote













Summary:



I've been doing a lot of research on this and found several excellent definitions from CableOrganizer that has helped to clarify a lot of the confusion I've been having. I'll lay this out as clearly as I can to cite the differences between grommets and bushings which has made it easier to find the correct part I was looking for.





Is it a grommet or a bushing?



The terms "grommet" and "bushing" are pretty open in terms of their meaning, and depending on their application, but typically both words refer to a piece of material, usually circular in shape, that provides a buffer between two areas that can serve many different purposes, from insulation to vibration resistance to protection from abrasion and friction.1



A grommet is basically just a rubber bumper that protects cables from the hard edges or sharp corners of whatever surface it may be passing between.



enter image description here



What's is the purpose of grommets and bushings?



When running your cables through small openings or around sharp curves you will encounter rough metal or wooden edges that may damage or break your cables. These rubber grommets provide an abrasion resistant cushion around these small openings and sharp edges to protect your wiring.



A bushing is similar to a grommet and serves the function, to protect a cable from damage, but are notably more complex. These additional features can provide extra protection and functionality beyond a simple rubber pass-though.2



Examples of common bushings





  • PVC Bushings



    Other bushings are a bit more complex in their design. Rather than a simple rubber circle, many bushings have different features that help give a little extra protection or added functionality. Non-metallic wire bushings, for example, are essentially similar to rubber grommets, though they're made from PVC and feature a threaded pattern that allows them to install into surfaces more securely.1




enter image description here





  • Snap Bushings



    Snap bushings are so called because they can snap into the surface and lock into place once installed, thanks to the design of the outer edge that allows portions to expand once placed into the desired hole.



    Many snap bushings are simple circular pass-throughs, but others feature "wings" or "shutters" which are flaps that help keep cables from being too loose in the pass-through, keeping them centered and also protecting them from too much vibration and shock.1




enter image description here





  • Snub Bushings



    Taking it a step further are snub bushings, which have a thick split opening that will close around a cable once it's snapped into place, securing it and ensuring that it doesn't move. While this provides solid insulation and retention, it also means only a single cable can be properly secured in each bushing, rather than a bundle.1




enter image description here





  • Open Bushings



    An open bushing is a grommet that is not a closed circle, but rather contains a slit that divides the circle when not installed. This allows it to do a few things closed grommets and bushings can't. Cables can be installed with a side-entry method, instead of a feed-through, for example. Additionally, they can be installed into pre-existing holes, or along pre-existing cable runs.1




enter image description here



Steve also mentioned grommet strips, also sometimes referred to as "edging", and can be found with or without adhesive.



enter image description here



enter image description here





What is the identity of the part in the question?



The bushing from my original question ended up being a Heyco snap bushing SB 375-4 (part no. 2030) with an inside diameter of 0.27" (6.8mm). A complete catalog is available online and parts can be sourced from Mouser Electronics.



Note that an inside diameter of 0.27" is an imperial variation with the next closest metric diameter being 7mm which may have a different outter diameter.






share|improve this answer



















  • 3




    Good information here. In plumbing, the term "bushing" is used to refer to a pipe fitting that reduces the size of another female pipe fitting. In PVC they come in threaded and solvent welded versions, and in metal pipe they are threaded only.
    – JPhi1618
    10 hours ago










  • I've only ever heard these called bushings, not grommets, so thanks for making the connection for me.
    – mbrig
    4 hours ago










  • Would you also like to include cable glands? en.wikipedia.org/wiki/Cable_gland
    – rrauenza
    3 hours ago










  • duuuuuuuuuuuuuuuuuude I was never able to find any "grommet strips" because I would have never thought they were called that. Now that I don't need them, of course I find out what they are called! SMH
    – YetAnotherRandomUser
    1 hour ago


















up vote
21
down vote













They are called grommets. You can also get grommet strip.






share|improve this answer




























    up vote
    10
    down vote













    Everyone's already identified basic grommets but I would add that, in the example of mains cable, there are specifically designed (and often legally required) cable grips which not only prevent chafing but also prevent the cable being pulled through.



    These are significantly different to general-purpose grommets so it's worth knowing the difference and why you might use one or the other.



    Edit: By request, this is an example of a common form of cable grip/gland used to retain fixed mains cables in many appliances:



    enter image description here



    RS-Components Stock No. 136-1750






    share|improve this answer























    • Can you provide an example image of cable grips?
      – Zhro
      15 hours ago












    • Yes - updated my answer.
      – John U
      14 hours ago











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    4 Answers
    4






    active

    oldest

    votes








    4 Answers
    4






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes








    up vote
    79
    down vote













    That's a grommet, not to be confused with Grommit.



    enter image description here



    Grommit - of Wallace and Grommit fame.






    share|improve this answer



















    • 3




      made my day :-)
      – Blup1980
      19 hours ago






    • 1




      Got our "funny" head on today? plus 1... :)
      – Solar Mike
      18 hours ago






    • 9




      Check the datasheet before buying them though, some are compatible with Wensleydale, some are not.
      – Wossname
      17 hours ago










    • this has to be one of the most versatile technical terms ever. I counted > 30 different meanings (interdisciplinary, not limited to EE) when translating to German only: dict.leo.org/englisch-deutsch/grommet
      – dlatikay
      13 hours ago








    • 1




      @dlatikay I only know of one meaning for the word "grommet": it's a thing placed around the inside of a hole, which protects the hole, or something passing through the hole, from wear. What else does it mean?
      – Tanner Swett
      10 hours ago















    up vote
    79
    down vote













    That's a grommet, not to be confused with Grommit.



    enter image description here



    Grommit - of Wallace and Grommit fame.






    share|improve this answer



















    • 3




      made my day :-)
      – Blup1980
      19 hours ago






    • 1




      Got our "funny" head on today? plus 1... :)
      – Solar Mike
      18 hours ago






    • 9




      Check the datasheet before buying them though, some are compatible with Wensleydale, some are not.
      – Wossname
      17 hours ago










    • this has to be one of the most versatile technical terms ever. I counted > 30 different meanings (interdisciplinary, not limited to EE) when translating to German only: dict.leo.org/englisch-deutsch/grommet
      – dlatikay
      13 hours ago








    • 1




      @dlatikay I only know of one meaning for the word "grommet": it's a thing placed around the inside of a hole, which protects the hole, or something passing through the hole, from wear. What else does it mean?
      – Tanner Swett
      10 hours ago













    up vote
    79
    down vote










    up vote
    79
    down vote









    That's a grommet, not to be confused with Grommit.



    enter image description here



    Grommit - of Wallace and Grommit fame.






    share|improve this answer














    That's a grommet, not to be confused with Grommit.



    enter image description here



    Grommit - of Wallace and Grommit fame.







    share|improve this answer














    share|improve this answer



    share|improve this answer








    edited 18 hours ago

























    answered 19 hours ago









    Transistor

    77.5k577170




    77.5k577170








    • 3




      made my day :-)
      – Blup1980
      19 hours ago






    • 1




      Got our "funny" head on today? plus 1... :)
      – Solar Mike
      18 hours ago






    • 9




      Check the datasheet before buying them though, some are compatible with Wensleydale, some are not.
      – Wossname
      17 hours ago










    • this has to be one of the most versatile technical terms ever. I counted > 30 different meanings (interdisciplinary, not limited to EE) when translating to German only: dict.leo.org/englisch-deutsch/grommet
      – dlatikay
      13 hours ago








    • 1




      @dlatikay I only know of one meaning for the word "grommet": it's a thing placed around the inside of a hole, which protects the hole, or something passing through the hole, from wear. What else does it mean?
      – Tanner Swett
      10 hours ago














    • 3




      made my day :-)
      – Blup1980
      19 hours ago






    • 1




      Got our "funny" head on today? plus 1... :)
      – Solar Mike
      18 hours ago






    • 9




      Check the datasheet before buying them though, some are compatible with Wensleydale, some are not.
      – Wossname
      17 hours ago










    • this has to be one of the most versatile technical terms ever. I counted > 30 different meanings (interdisciplinary, not limited to EE) when translating to German only: dict.leo.org/englisch-deutsch/grommet
      – dlatikay
      13 hours ago








    • 1




      @dlatikay I only know of one meaning for the word "grommet": it's a thing placed around the inside of a hole, which protects the hole, or something passing through the hole, from wear. What else does it mean?
      – Tanner Swett
      10 hours ago








    3




    3




    made my day :-)
    – Blup1980
    19 hours ago




    made my day :-)
    – Blup1980
    19 hours ago




    1




    1




    Got our "funny" head on today? plus 1... :)
    – Solar Mike
    18 hours ago




    Got our "funny" head on today? plus 1... :)
    – Solar Mike
    18 hours ago




    9




    9




    Check the datasheet before buying them though, some are compatible with Wensleydale, some are not.
    – Wossname
    17 hours ago




    Check the datasheet before buying them though, some are compatible with Wensleydale, some are not.
    – Wossname
    17 hours ago












    this has to be one of the most versatile technical terms ever. I counted > 30 different meanings (interdisciplinary, not limited to EE) when translating to German only: dict.leo.org/englisch-deutsch/grommet
    – dlatikay
    13 hours ago






    this has to be one of the most versatile technical terms ever. I counted > 30 different meanings (interdisciplinary, not limited to EE) when translating to German only: dict.leo.org/englisch-deutsch/grommet
    – dlatikay
    13 hours ago






    1




    1




    @dlatikay I only know of one meaning for the word "grommet": it's a thing placed around the inside of a hole, which protects the hole, or something passing through the hole, from wear. What else does it mean?
    – Tanner Swett
    10 hours ago




    @dlatikay I only know of one meaning for the word "grommet": it's a thing placed around the inside of a hole, which protects the hole, or something passing through the hole, from wear. What else does it mean?
    – Tanner Swett
    10 hours ago












    up vote
    38
    down vote













    Summary:



    I've been doing a lot of research on this and found several excellent definitions from CableOrganizer that has helped to clarify a lot of the confusion I've been having. I'll lay this out as clearly as I can to cite the differences between grommets and bushings which has made it easier to find the correct part I was looking for.





    Is it a grommet or a bushing?



    The terms "grommet" and "bushing" are pretty open in terms of their meaning, and depending on their application, but typically both words refer to a piece of material, usually circular in shape, that provides a buffer between two areas that can serve many different purposes, from insulation to vibration resistance to protection from abrasion and friction.1



    A grommet is basically just a rubber bumper that protects cables from the hard edges or sharp corners of whatever surface it may be passing between.



    enter image description here



    What's is the purpose of grommets and bushings?



    When running your cables through small openings or around sharp curves you will encounter rough metal or wooden edges that may damage or break your cables. These rubber grommets provide an abrasion resistant cushion around these small openings and sharp edges to protect your wiring.



    A bushing is similar to a grommet and serves the function, to protect a cable from damage, but are notably more complex. These additional features can provide extra protection and functionality beyond a simple rubber pass-though.2



    Examples of common bushings





    • PVC Bushings



      Other bushings are a bit more complex in their design. Rather than a simple rubber circle, many bushings have different features that help give a little extra protection or added functionality. Non-metallic wire bushings, for example, are essentially similar to rubber grommets, though they're made from PVC and feature a threaded pattern that allows them to install into surfaces more securely.1




    enter image description here





    • Snap Bushings



      Snap bushings are so called because they can snap into the surface and lock into place once installed, thanks to the design of the outer edge that allows portions to expand once placed into the desired hole.



      Many snap bushings are simple circular pass-throughs, but others feature "wings" or "shutters" which are flaps that help keep cables from being too loose in the pass-through, keeping them centered and also protecting them from too much vibration and shock.1




    enter image description here





    • Snub Bushings



      Taking it a step further are snub bushings, which have a thick split opening that will close around a cable once it's snapped into place, securing it and ensuring that it doesn't move. While this provides solid insulation and retention, it also means only a single cable can be properly secured in each bushing, rather than a bundle.1




    enter image description here





    • Open Bushings



      An open bushing is a grommet that is not a closed circle, but rather contains a slit that divides the circle when not installed. This allows it to do a few things closed grommets and bushings can't. Cables can be installed with a side-entry method, instead of a feed-through, for example. Additionally, they can be installed into pre-existing holes, or along pre-existing cable runs.1




    enter image description here



    Steve also mentioned grommet strips, also sometimes referred to as "edging", and can be found with or without adhesive.



    enter image description here



    enter image description here





    What is the identity of the part in the question?



    The bushing from my original question ended up being a Heyco snap bushing SB 375-4 (part no. 2030) with an inside diameter of 0.27" (6.8mm). A complete catalog is available online and parts can be sourced from Mouser Electronics.



    Note that an inside diameter of 0.27" is an imperial variation with the next closest metric diameter being 7mm which may have a different outter diameter.






    share|improve this answer



















    • 3




      Good information here. In plumbing, the term "bushing" is used to refer to a pipe fitting that reduces the size of another female pipe fitting. In PVC they come in threaded and solvent welded versions, and in metal pipe they are threaded only.
      – JPhi1618
      10 hours ago










    • I've only ever heard these called bushings, not grommets, so thanks for making the connection for me.
      – mbrig
      4 hours ago










    • Would you also like to include cable glands? en.wikipedia.org/wiki/Cable_gland
      – rrauenza
      3 hours ago










    • duuuuuuuuuuuuuuuuuude I was never able to find any "grommet strips" because I would have never thought they were called that. Now that I don't need them, of course I find out what they are called! SMH
      – YetAnotherRandomUser
      1 hour ago















    up vote
    38
    down vote













    Summary:



    I've been doing a lot of research on this and found several excellent definitions from CableOrganizer that has helped to clarify a lot of the confusion I've been having. I'll lay this out as clearly as I can to cite the differences between grommets and bushings which has made it easier to find the correct part I was looking for.





    Is it a grommet or a bushing?



    The terms "grommet" and "bushing" are pretty open in terms of their meaning, and depending on their application, but typically both words refer to a piece of material, usually circular in shape, that provides a buffer between two areas that can serve many different purposes, from insulation to vibration resistance to protection from abrasion and friction.1



    A grommet is basically just a rubber bumper that protects cables from the hard edges or sharp corners of whatever surface it may be passing between.



    enter image description here



    What's is the purpose of grommets and bushings?



    When running your cables through small openings or around sharp curves you will encounter rough metal or wooden edges that may damage or break your cables. These rubber grommets provide an abrasion resistant cushion around these small openings and sharp edges to protect your wiring.



    A bushing is similar to a grommet and serves the function, to protect a cable from damage, but are notably more complex. These additional features can provide extra protection and functionality beyond a simple rubber pass-though.2



    Examples of common bushings





    • PVC Bushings



      Other bushings are a bit more complex in their design. Rather than a simple rubber circle, many bushings have different features that help give a little extra protection or added functionality. Non-metallic wire bushings, for example, are essentially similar to rubber grommets, though they're made from PVC and feature a threaded pattern that allows them to install into surfaces more securely.1




    enter image description here





    • Snap Bushings



      Snap bushings are so called because they can snap into the surface and lock into place once installed, thanks to the design of the outer edge that allows portions to expand once placed into the desired hole.



      Many snap bushings are simple circular pass-throughs, but others feature "wings" or "shutters" which are flaps that help keep cables from being too loose in the pass-through, keeping them centered and also protecting them from too much vibration and shock.1




    enter image description here





    • Snub Bushings



      Taking it a step further are snub bushings, which have a thick split opening that will close around a cable once it's snapped into place, securing it and ensuring that it doesn't move. While this provides solid insulation and retention, it also means only a single cable can be properly secured in each bushing, rather than a bundle.1




    enter image description here





    • Open Bushings



      An open bushing is a grommet that is not a closed circle, but rather contains a slit that divides the circle when not installed. This allows it to do a few things closed grommets and bushings can't. Cables can be installed with a side-entry method, instead of a feed-through, for example. Additionally, they can be installed into pre-existing holes, or along pre-existing cable runs.1




    enter image description here



    Steve also mentioned grommet strips, also sometimes referred to as "edging", and can be found with or without adhesive.



    enter image description here



    enter image description here





    What is the identity of the part in the question?



    The bushing from my original question ended up being a Heyco snap bushing SB 375-4 (part no. 2030) with an inside diameter of 0.27" (6.8mm). A complete catalog is available online and parts can be sourced from Mouser Electronics.



    Note that an inside diameter of 0.27" is an imperial variation with the next closest metric diameter being 7mm which may have a different outter diameter.






    share|improve this answer



















    • 3




      Good information here. In plumbing, the term "bushing" is used to refer to a pipe fitting that reduces the size of another female pipe fitting. In PVC they come in threaded and solvent welded versions, and in metal pipe they are threaded only.
      – JPhi1618
      10 hours ago










    • I've only ever heard these called bushings, not grommets, so thanks for making the connection for me.
      – mbrig
      4 hours ago










    • Would you also like to include cable glands? en.wikipedia.org/wiki/Cable_gland
      – rrauenza
      3 hours ago










    • duuuuuuuuuuuuuuuuuude I was never able to find any "grommet strips" because I would have never thought they were called that. Now that I don't need them, of course I find out what they are called! SMH
      – YetAnotherRandomUser
      1 hour ago













    up vote
    38
    down vote










    up vote
    38
    down vote









    Summary:



    I've been doing a lot of research on this and found several excellent definitions from CableOrganizer that has helped to clarify a lot of the confusion I've been having. I'll lay this out as clearly as I can to cite the differences between grommets and bushings which has made it easier to find the correct part I was looking for.





    Is it a grommet or a bushing?



    The terms "grommet" and "bushing" are pretty open in terms of their meaning, and depending on their application, but typically both words refer to a piece of material, usually circular in shape, that provides a buffer between two areas that can serve many different purposes, from insulation to vibration resistance to protection from abrasion and friction.1



    A grommet is basically just a rubber bumper that protects cables from the hard edges or sharp corners of whatever surface it may be passing between.



    enter image description here



    What's is the purpose of grommets and bushings?



    When running your cables through small openings or around sharp curves you will encounter rough metal or wooden edges that may damage or break your cables. These rubber grommets provide an abrasion resistant cushion around these small openings and sharp edges to protect your wiring.



    A bushing is similar to a grommet and serves the function, to protect a cable from damage, but are notably more complex. These additional features can provide extra protection and functionality beyond a simple rubber pass-though.2



    Examples of common bushings





    • PVC Bushings



      Other bushings are a bit more complex in their design. Rather than a simple rubber circle, many bushings have different features that help give a little extra protection or added functionality. Non-metallic wire bushings, for example, are essentially similar to rubber grommets, though they're made from PVC and feature a threaded pattern that allows them to install into surfaces more securely.1




    enter image description here





    • Snap Bushings



      Snap bushings are so called because they can snap into the surface and lock into place once installed, thanks to the design of the outer edge that allows portions to expand once placed into the desired hole.



      Many snap bushings are simple circular pass-throughs, but others feature "wings" or "shutters" which are flaps that help keep cables from being too loose in the pass-through, keeping them centered and also protecting them from too much vibration and shock.1




    enter image description here





    • Snub Bushings



      Taking it a step further are snub bushings, which have a thick split opening that will close around a cable once it's snapped into place, securing it and ensuring that it doesn't move. While this provides solid insulation and retention, it also means only a single cable can be properly secured in each bushing, rather than a bundle.1




    enter image description here





    • Open Bushings



      An open bushing is a grommet that is not a closed circle, but rather contains a slit that divides the circle when not installed. This allows it to do a few things closed grommets and bushings can't. Cables can be installed with a side-entry method, instead of a feed-through, for example. Additionally, they can be installed into pre-existing holes, or along pre-existing cable runs.1




    enter image description here



    Steve also mentioned grommet strips, also sometimes referred to as "edging", and can be found with or without adhesive.



    enter image description here



    enter image description here





    What is the identity of the part in the question?



    The bushing from my original question ended up being a Heyco snap bushing SB 375-4 (part no. 2030) with an inside diameter of 0.27" (6.8mm). A complete catalog is available online and parts can be sourced from Mouser Electronics.



    Note that an inside diameter of 0.27" is an imperial variation with the next closest metric diameter being 7mm which may have a different outter diameter.






    share|improve this answer














    Summary:



    I've been doing a lot of research on this and found several excellent definitions from CableOrganizer that has helped to clarify a lot of the confusion I've been having. I'll lay this out as clearly as I can to cite the differences between grommets and bushings which has made it easier to find the correct part I was looking for.





    Is it a grommet or a bushing?



    The terms "grommet" and "bushing" are pretty open in terms of their meaning, and depending on their application, but typically both words refer to a piece of material, usually circular in shape, that provides a buffer between two areas that can serve many different purposes, from insulation to vibration resistance to protection from abrasion and friction.1



    A grommet is basically just a rubber bumper that protects cables from the hard edges or sharp corners of whatever surface it may be passing between.



    enter image description here



    What's is the purpose of grommets and bushings?



    When running your cables through small openings or around sharp curves you will encounter rough metal or wooden edges that may damage or break your cables. These rubber grommets provide an abrasion resistant cushion around these small openings and sharp edges to protect your wiring.



    A bushing is similar to a grommet and serves the function, to protect a cable from damage, but are notably more complex. These additional features can provide extra protection and functionality beyond a simple rubber pass-though.2



    Examples of common bushings





    • PVC Bushings



      Other bushings are a bit more complex in their design. Rather than a simple rubber circle, many bushings have different features that help give a little extra protection or added functionality. Non-metallic wire bushings, for example, are essentially similar to rubber grommets, though they're made from PVC and feature a threaded pattern that allows them to install into surfaces more securely.1




    enter image description here





    • Snap Bushings



      Snap bushings are so called because they can snap into the surface and lock into place once installed, thanks to the design of the outer edge that allows portions to expand once placed into the desired hole.



      Many snap bushings are simple circular pass-throughs, but others feature "wings" or "shutters" which are flaps that help keep cables from being too loose in the pass-through, keeping them centered and also protecting them from too much vibration and shock.1




    enter image description here





    • Snub Bushings



      Taking it a step further are snub bushings, which have a thick split opening that will close around a cable once it's snapped into place, securing it and ensuring that it doesn't move. While this provides solid insulation and retention, it also means only a single cable can be properly secured in each bushing, rather than a bundle.1




    enter image description here





    • Open Bushings



      An open bushing is a grommet that is not a closed circle, but rather contains a slit that divides the circle when not installed. This allows it to do a few things closed grommets and bushings can't. Cables can be installed with a side-entry method, instead of a feed-through, for example. Additionally, they can be installed into pre-existing holes, or along pre-existing cable runs.1




    enter image description here



    Steve also mentioned grommet strips, also sometimes referred to as "edging", and can be found with or without adhesive.



    enter image description here



    enter image description here





    What is the identity of the part in the question?



    The bushing from my original question ended up being a Heyco snap bushing SB 375-4 (part no. 2030) with an inside diameter of 0.27" (6.8mm). A complete catalog is available online and parts can be sourced from Mouser Electronics.



    Note that an inside diameter of 0.27" is an imperial variation with the next closest metric diameter being 7mm which may have a different outter diameter.







    share|improve this answer














    share|improve this answer



    share|improve this answer








    edited 16 hours ago

























    answered 16 hours ago









    Zhro

    554315




    554315








    • 3




      Good information here. In plumbing, the term "bushing" is used to refer to a pipe fitting that reduces the size of another female pipe fitting. In PVC they come in threaded and solvent welded versions, and in metal pipe they are threaded only.
      – JPhi1618
      10 hours ago










    • I've only ever heard these called bushings, not grommets, so thanks for making the connection for me.
      – mbrig
      4 hours ago










    • Would you also like to include cable glands? en.wikipedia.org/wiki/Cable_gland
      – rrauenza
      3 hours ago










    • duuuuuuuuuuuuuuuuuude I was never able to find any "grommet strips" because I would have never thought they were called that. Now that I don't need them, of course I find out what they are called! SMH
      – YetAnotherRandomUser
      1 hour ago














    • 3




      Good information here. In plumbing, the term "bushing" is used to refer to a pipe fitting that reduces the size of another female pipe fitting. In PVC they come in threaded and solvent welded versions, and in metal pipe they are threaded only.
      – JPhi1618
      10 hours ago










    • I've only ever heard these called bushings, not grommets, so thanks for making the connection for me.
      – mbrig
      4 hours ago










    • Would you also like to include cable glands? en.wikipedia.org/wiki/Cable_gland
      – rrauenza
      3 hours ago










    • duuuuuuuuuuuuuuuuuude I was never able to find any "grommet strips" because I would have never thought they were called that. Now that I don't need them, of course I find out what they are called! SMH
      – YetAnotherRandomUser
      1 hour ago








    3




    3




    Good information here. In plumbing, the term "bushing" is used to refer to a pipe fitting that reduces the size of another female pipe fitting. In PVC they come in threaded and solvent welded versions, and in metal pipe they are threaded only.
    – JPhi1618
    10 hours ago




    Good information here. In plumbing, the term "bushing" is used to refer to a pipe fitting that reduces the size of another female pipe fitting. In PVC they come in threaded and solvent welded versions, and in metal pipe they are threaded only.
    – JPhi1618
    10 hours ago












    I've only ever heard these called bushings, not grommets, so thanks for making the connection for me.
    – mbrig
    4 hours ago




    I've only ever heard these called bushings, not grommets, so thanks for making the connection for me.
    – mbrig
    4 hours ago












    Would you also like to include cable glands? en.wikipedia.org/wiki/Cable_gland
    – rrauenza
    3 hours ago




    Would you also like to include cable glands? en.wikipedia.org/wiki/Cable_gland
    – rrauenza
    3 hours ago












    duuuuuuuuuuuuuuuuuude I was never able to find any "grommet strips" because I would have never thought they were called that. Now that I don't need them, of course I find out what they are called! SMH
    – YetAnotherRandomUser
    1 hour ago




    duuuuuuuuuuuuuuuuuude I was never able to find any "grommet strips" because I would have never thought they were called that. Now that I don't need them, of course I find out what they are called! SMH
    – YetAnotherRandomUser
    1 hour ago










    up vote
    21
    down vote













    They are called grommets. You can also get grommet strip.






    share|improve this answer

























      up vote
      21
      down vote













      They are called grommets. You can also get grommet strip.






      share|improve this answer























        up vote
        21
        down vote










        up vote
        21
        down vote









        They are called grommets. You can also get grommet strip.






        share|improve this answer












        They are called grommets. You can also get grommet strip.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 19 hours ago









        Steve Hubbard

        5876




        5876






















            up vote
            10
            down vote













            Everyone's already identified basic grommets but I would add that, in the example of mains cable, there are specifically designed (and often legally required) cable grips which not only prevent chafing but also prevent the cable being pulled through.



            These are significantly different to general-purpose grommets so it's worth knowing the difference and why you might use one or the other.



            Edit: By request, this is an example of a common form of cable grip/gland used to retain fixed mains cables in many appliances:



            enter image description here



            RS-Components Stock No. 136-1750






            share|improve this answer























            • Can you provide an example image of cable grips?
              – Zhro
              15 hours ago












            • Yes - updated my answer.
              – John U
              14 hours ago















            up vote
            10
            down vote













            Everyone's already identified basic grommets but I would add that, in the example of mains cable, there are specifically designed (and often legally required) cable grips which not only prevent chafing but also prevent the cable being pulled through.



            These are significantly different to general-purpose grommets so it's worth knowing the difference and why you might use one or the other.



            Edit: By request, this is an example of a common form of cable grip/gland used to retain fixed mains cables in many appliances:



            enter image description here



            RS-Components Stock No. 136-1750






            share|improve this answer























            • Can you provide an example image of cable grips?
              – Zhro
              15 hours ago












            • Yes - updated my answer.
              – John U
              14 hours ago













            up vote
            10
            down vote










            up vote
            10
            down vote









            Everyone's already identified basic grommets but I would add that, in the example of mains cable, there are specifically designed (and often legally required) cable grips which not only prevent chafing but also prevent the cable being pulled through.



            These are significantly different to general-purpose grommets so it's worth knowing the difference and why you might use one or the other.



            Edit: By request, this is an example of a common form of cable grip/gland used to retain fixed mains cables in many appliances:



            enter image description here



            RS-Components Stock No. 136-1750






            share|improve this answer














            Everyone's already identified basic grommets but I would add that, in the example of mains cable, there are specifically designed (and often legally required) cable grips which not only prevent chafing but also prevent the cable being pulled through.



            These are significantly different to general-purpose grommets so it's worth knowing the difference and why you might use one or the other.



            Edit: By request, this is an example of a common form of cable grip/gland used to retain fixed mains cables in many appliances:



            enter image description here



            RS-Components Stock No. 136-1750







            share|improve this answer














            share|improve this answer



            share|improve this answer








            edited 14 hours ago

























            answered 15 hours ago









            John U

            5,63911130




            5,63911130












            • Can you provide an example image of cable grips?
              – Zhro
              15 hours ago












            • Yes - updated my answer.
              – John U
              14 hours ago


















            • Can you provide an example image of cable grips?
              – Zhro
              15 hours ago












            • Yes - updated my answer.
              – John U
              14 hours ago
















            Can you provide an example image of cable grips?
            – Zhro
            15 hours ago






            Can you provide an example image of cable grips?
            – Zhro
            15 hours ago














            Yes - updated my answer.
            – John U
            14 hours ago




            Yes - updated my answer.
            – John U
            14 hours ago


















             

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