System of Measurement System of Measurement |
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For Hole Diameter For Hole Diameter |
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ID (C) ID (C) |
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Mount Type Mount Type |
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![]() | Snap In |
Material Material |
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Flange Diameter (D) Flange Diameter (D) |
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Shape Shape |
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![]() | Round |
For Use With For Use With |
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Hardness Rating Hardness Rating |
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Hardness Hardness |
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Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Durometer Hardness Scales
More
Locking Grommets


These grommets snap into place and have wings that expand against the sides of the hole to lock them in position. Use them to protect wire, cable, and cords by turning rough-edged and uneven holes into smooth holes. Made of plastic, these grommets are chemical resistant, and all have an extra-hard rating to withstand high levels of impact.
Grommets that can be used outdoors won't dry out and become brittle when exposed to UV rays.
For technical drawings and 3-D models, click on a part number.
For Hole Dia. (A) | For Material Thick. (B) | ID (C) | Flange Dia. (D) | Overall Ht. (E) | Hardness Rating | Hardness | Temp. Range, °F | For Use Outdoors | Choose a Color | Pkg. Qty. | Pkg. | |
Nylon Plastic | ||||||||||||
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3/16" | 1/32"-1/16" | 1/8" | 1/4" | 15/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
1/4" | 1/32"-1/16" | 1/8" | 5/16" | 5/16" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 0000 | |
5/16" | 1/32"-1/16" | 3/16" | 3/8" | 5/16" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 0000 | |
5/16" | 1/32"-1/16" | 1/4" | 3/8" | 15/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 0000 | |
3/8" | 1/32"-1/8" | 3/16" | 15/32" | 13/32" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 0000 | |
3/8" | 1/32"-1/8" | 1/4" | 15/32" | 13/32" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 0000 | |
1/2" | 1/32"-1/16" | 3/8" | 9/16" | 1/4" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 0000 | |
1/2" | 1/32"-1/8" | 1/4" | 37/64" | 13/32" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
1/2" | 1/32"-1/8" | 5/16" | 37/64" | 13/32" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
1/2" | 1/32"-1/8" | 3/8" | 37/64" | 13/32" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
9/16" | 1/32"-1/8" | 5/16" | 21/32" | 13/32" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
9/16" | 1/32"-1/8" | 3/8" | 21/32" | 13/32" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
9/16" | 1/32"-1/8" | 7/16" | 21/32" | 13/32" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
5/8" | 1/32"-1/16" | 1/2" | 45/64" | 1/4" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
5/8" | 1/32"-1/8" | 1/4" | 23/32" | 13/32" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
5/8" | 1/32"-1/8" | 7/16" | 23/32" | 13/32" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
5/8" | 1/32"-1/8" | 1/2" | 23/32" | 13/32" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
3/4" | 1/32"-1/16" | 5/8" | 53/64" | 1/4" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
3/4" | 1/32"-1/8" | 3/8" | 27/32" | 13/32" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
3/4" | 1/32"-1/8" | 1/2" | 27/32" | 13/32" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
3/4" | 1/32"-1/8" | 9/16" | 27/32" | 13/32" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
13/16" | 1/32"-1/8" | 5/8" | 57/64" | 13/32" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
7/8" | 1/32"-1/16" | 3/4" | 15/16" | 1/4" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
7/8" | 1/32"-1/8" | 3/8" | 61/64" | 29/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
7/8" | 1/32"-1/8" | 7/16" | 61/64" | 29/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
7/8" | 1/32"-1/8" | 1/2" | 61/64" | 29/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
7/8" | 1/32"-1/8" | 9/16" | 61/64" | 29/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
7/8" | 1/32"-1/8" | 5/8" | 61/64" | 29/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
7/8" | 1/32"-1/8" | 11/16" | 61/64" | 29/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
1" | 1/32"-1/8" | 3/4" | 1 1/8" | 29/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
1 3/16" | 1/32"-1/8" | 15/16" | 1 5/16" | 29/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
1 1/4" | 1/32"-1/8" | 15/16" | 1 23/64" | 29/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
1 3/8" | 1/32"-1/8" | 1" | 1 15/32" | 29/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 100 | 0000000 | 00000 | |
1 1/2" | 1/32"-1/8" | 1 1/16" | 1 39/64" | 29/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 50 | 0000000 | 00000 | |
1 1/2" | 1/32"-1/8" | 1 1/8" | 1 39/64" | 29/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 50 | 0000000 | 00000 | |
1 1/2" | 1/32"-1/8" | 1 5/16" | 1 39/64" | 29/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 50 | 0000000 | 00000 | |
1 3/4" | 1/32"-1/8" | 1 3/8" | 1 7/8" | 29/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 50 | 0000000 | 00000 | |
2" | 1/32"-1/8" | 1 5/8" | 2 1/8" | 29/64" | Extra Hard | Rockwell R120 | -40° to 185° | No | 50 | 0000000 | 00000 | |
2 1/4" | 1/32"-1/4" | 1 55/64" | 2 31/64" | 23/32" | Extra Hard | Rockwell R120 | 0° to 220° | Yes | Black | 10 | 0000000 | 0000 |
2 1/2" | 1/32"-1/4" | 1 31/32" | 2 21/32" | 23/32" | Extra Hard | Rockwell R120 | 0° to 220° | Yes | Black | 10 | 0000000 | 00000 |
3" | 1/32"-1/4" | 2 15/32" | 3 5/32" | 3/4" | Extra Hard | Rockwell R120 | 0° to 220° | Yes | Black | 10 | 0000000 | 00000 |
3" | 1/32"-1/4" | 2 3/4" | 3 5/32" | 23/32" | Extra Hard | Rockwell R120 | 0° to 220° | Yes | Black | 5 | 0000000 | 00000 |
3 3/8" | 1/32"-1/4" | 2 13/16" | 3 21/32" | 23/32" | Extra Hard | Rockwell R120 | 0° to 220° | Yes | Black | 5 | 0000000 | 00000 |
3 1/2" | 1/32"-1/4" | 2 15/16" | 3 21/32" | 23/32" | Extra Hard | Rockwell R120 | 0° to 220° | Yes | Black | 5 | 0000000 | 00000 |
4" | 1/32"-1/4" | 3 15/32" | 4 5/32" | 23/32" | Extra Hard | Rockwell R120 | 0° to 220° | Yes | Black | 5 | 0000000 | 00000 |
5" | 1/32"-1/4" | 4 3/8" | 5 7/32" | 47/64" | Extra Hard | Rockwell R120 | 0° to 220° | Yes | Black | 1 | 0000000 | 0000 |