MIDWEST FASTENER CORP
MIDWEST FASTENER CORP 72604 Black Rubber Grommets 20 Pack
Black rubber grommets protect wiring from sharp panel edges in a 20 pack
- Protects wires from sharp edges using durable rubber construction
- Pack of 20 grommets covers multiple installation points
- 3/8 inch inner diameter fits standard cable routing holes
- Black rubber material resists wear in automotive environments
- Reinforces panel holes to prevent material tearing over time
Black Rubber Grommet Pack
This pack contains twenty black rubber grommets designed to protect wires, cables or hoses passing through panel holes. They reinforce the opening and shield materials from sharp edges in automotive, marine or general workshop tasks. The grommets suit DIYers and technicians who need a ready supply for routine maintenance or fabrication work. Buyers requiring larger diameters, different profiles or bulk quantities beyond twenty pieces will need a separate kit.
Replaces Worn Or Missing Seals
Use these grommets to replace cracked, hardened or lost originals that leave wiring exposed to vibration and chafing. The jump is worth it when an inspection reveals damaged insulation or when adding new circuits through existing firewall or bulkhead openings. They are not suited for high-pressure fluid passages, threaded connections or applications demanding a locking flange or integrated strain relief.
Rubber Material Limits
The rubber construction tolerates common under-bonnet temperatures and resists oil splash, but it is not rated for continuous fuel immersion, extreme heat cycles or UV-intensive exterior mounting without cover. The material will degrade if exposed to aggressive solvents or sustained temperatures beyond typical engine-bay ranges. No flange dimensions, durometer rating or flange thickness are supplied, so verify fit against the specific hole size before installation.
Highlights
- Protects wires from sharp edges using durable rubber construction
- Pack of 20 grommets covers multiple installation points
- 3/8 inch inner diameter fits standard cable routing holes
- Black rubber material resists wear in automotive environments
- Reinforces panel holes to prevent material tearing over time
Specifications
| Brand | MIDWEST FASTENER |
|---|
Questions about this item
What size hole do the 3/8" x 5/8" grommets fit?
The grommets are sized 3/8" x 5/8" x 1/4" x 1/16" and fit a corresponding panel opening to protect wires or tubing from sharp edges.
How do I install these rubber grommets correctly?
Press each grommet firmly into the pre-drilled hole until the flange seats flush; the step often missed is ensuring the hole diameter matches the grommet groove for a tight seal.
When should I replace the grommets in the 20 pack?
Replace any grommet that shows cracking, hardening, or loss of elasticity, as degraded rubber no longer shields cables from vibration or sharp panel edges.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.



