Rubber Grommets
Rubber grommets for wire and hose, sold in boxes of 25 and 50.
Browse Rubber GrommetsGrommets and bushings
Protect every wire through every hole.
A sheet-metal edge will cut through insulation or hose given enough vibration. Retmay stocks rubber grommets, SBR insulating grommets and bushings, and nylon grommets that line panel holes so wire and hose pass through cleanly.
Why it matters
Cheap insurance against a short.
Wherever a wire or hose passes through a panel, the hole edge is a wear point. Vibration rubs it back and forth until the jacket wears through, and the result is a short, a leak or a ground fault that is hard to trace.
A grommet lines the hole with a soft collar. Pick it by three sizes: the panel hole it snaps into, the panel thickness it grips, and the inside diameter the wire or hose passes through.
Rubber grommets cover most jobs. Insulating grommets and bushings suit larger holes and electrical panels, and nylon grommets hold up where a harder, cleaner finish is wanted.
Shop by type
Find the right type.
Each type links to its full list with photos, list prices and stock.
Insulating Grommets & Bushings
SBR-60 insulating grommets and standard insulating bushings for larger panel holes.
Search Insulating Grommets & BushingsNylon Grommets
Nylon grommets for a harder, clean-finish hole liner.
Search Nylon GrommetsChoosing
Match it to the job.
Hole size
Match the panel hole
The grommet groove must fit the drilled hole diameter.
Panel thickness
Match the panel width
The groove width should match the sheet thickness so the grommet seats and stays put.
Pass-through
Size the inside diameter
Leave the wire bundle or hose a snug, not tight, fit through the center.
Getting started
Ordering in three steps.
- Measure the panel hole and the panel thickness.
- Measure the wire bundle or hose that passes through.
- Pick the grommet by those three sizes, or send them to us to match.
Related
Routing wire? Loom clamps, cable ties and heat shrink keep the rest of the run protected.
Questions
Grommets FAQs
How do I size a grommet?
Use three numbers: the panel hole diameter, the panel thickness, and the inside diameter the wire or hose needs.
What is an insulating bushing?
A grommet-style liner for larger holes, often used where cable enters an electrical box or panel.
How are rubber grommets packed?
Most of our rubber grommets come in boxes of 25 or 50.
Can you match a grommet I already use?
Yes. Send the part number or the three sizes and we will find the match.