Buy Grommets & Blanking Plugs Online in Australia
Rubber Grommets & Blanking Plugs
Rubber grommets protect cables, wires and hoses where they pass through a hole in a metal or plastic panel — the grommet lines the hole edge so the cable doesn't chafe against bare metal and short out or wear through its insulation. Blanking grommets do the opposite job: they seal off a hole that isn't being used, keeping dust and moisture out of enclosures, switchboards and machine guards. Screw grommets add a rigid, part-metal insert so a self-tapping screw can be driven into thin sheet metal or trim without splitting it. AIMS Industrial stocks nitrile rubber and general-purpose rubber grommets, nylon and plastic screw-type grommets, and grommet assortment kits from Champion, GJ Works, Work Shop Buddy and Inox World, suited to auto electrical, panel-building, marine and general workshop maintenance work.
Grommet & Blanking Plug Range at a Glance
| Product type | Size range | Material | Pack / kit size |
|---|---|---|---|
| Wiring grommet (Champion CWG1) | M3–M23 bore, 11–37mm outside diameter | Nitrile rubber | Sold individually by size |
| Wiring grommet assortment (Champion CA63, refill packs) | M3 x 7 x 11mm up to M23 x 31 x 37mm | Rubber | Kit or individual refill sizes |
| Blanking grommet (Champion CBG) | 8–28mm hole diameter | Nitrile rubber | Sold individually by size |
| Blanking grommet assortment (Champion CA90 / refill packs) | 8–28mm hole diameter | Rubber | 91-piece kit or individual refill sizes |
| Rubber grommet assortment kit (Champion CA2174) | Mixed metric sizes | Rubber | Boxed assortment kit |
| Grommet grab kit (Work Shop Buddy) | 1/8" up to 1" hole diameter | Rubber | 125-piece kit |
| Imperial wiring / blanking grommet kits (GJ Works GKA86 / GKA95) | Imperial (inch) sizes | Rubber | 86-piece and 95-piece kits |
| Screw grommet (Champion CBP12 / CBP13) | 3.27mm and 4.2mm screw size | Plastic, white | 50 per pack |
| Screw grommet (Champion C1735-12 / C1735-14) | 7 x 7mm and 8.3 x 8.3mm hole | Plastic, white | 10 per pack |
| Plastic screw grommet kit (GJ Works GKA70) | Assorted screw sizes | Plastic | 70-piece kit |
| Door trim bush (Champion C1735-9) | 8mm hole, 7mm width | Plastic, clear | 20 per pack |
| Nylon cable grommet (Inox World) | M3.2–M5 cable diameter, 11/32" hole | Nylon | Sold individually, black or grey |
| Plastic trim clip assortment (Champion CA1735) | Mixed sizes | Plastic | 180-piece kit |
How to Choose the Right Grommet
Getting the fit right comes down to three measurements, checked against the panel or enclosure you're fitting it to:
- Hole diameter: the grommet's groove (outside edge) needs to match the diameter of the hole it's sitting in — slightly undersized and it will sit loose and eventually pop out; slightly oversized and it won't seat, or the rubber will tear on installation.
- Cable or wire diameter: the grommet's inside diameter needs to grip the cable snugly without crushing the insulation. Too large and the cable can still chafe against the panel edge inside the grommet; too small and you won't get the cable through.
- Panel or wall thickness: check the enclosure or panel thickness against the grommet's groove depth before ordering — a grommet designed for thin sheet metal won't seat properly in a thicker panel wall, and vice versa.
Material matters too. AIMS stocks predominantly nitrile rubber and general-purpose rubber grommets — nitrile has good resistance to oils and fuels, which suits automotive, marine and workshop environments where the grommet may see the occasional splash of oil or diesel. For rigid fixing points, trim panels and light-duty cable retention where a self-tapping screw needs a stable hole in thin sheet metal, the range includes nylon and plastic screw grommets and trim bushes. If your application calls for a material outside this range — silicone for high-temperature work, or EPDM for continuous outdoor UV exposure, for example — get in touch with our team and we'll help source the right part.
Buying as a kit or individually is largely a maintenance-versus-production call. A grab kit or assortment (Champion CA2174, the Work Shop Buddy grab kit, or the GJ Works imperial kits) puts a spread of common sizes on the shelf for whatever job comes up next — good value for general workshop and maintenance use. If you're consuming one specific size in volume — a production run of enclosures or a panel-building job — buying that size individually works out cheaper per piece.
Brands We Stock
Champion is the core of the range — wiring grommets, blanking grommets, screw grommets, trim bushes and assortment kits across nitrile rubber, rubber and plastic. GJ Works supplies imperial-sized wiring, blanking and screw grommet kits for equipment built to inch measurements. Work Shop Buddy's 125-piece grommet grab kit covers the 1/8" to 1" range in one box for the general workshop trade. Inox World supplies a nylon cable grommet for lighter electronic and control-panel work.
Related AIMS Categories
- Wire & Cable Management — cable ties, clips and routing accessories to pair with your grommeted cable entries
- Electrical & Electronic — terminals, connectors and switchboard hardware
- Fasteners — the wider AIMS fastener range, including the screws that pair with our screw grommets
FAQs
What's the difference between a wiring grommet and a blanking grommet?
A wiring grommet has a hole through the centre so a cable can pass through it — it protects the cable from the panel edge. A blanking grommet is solid (no through-hole) and is used to seal off an unused cut-out or knockout in an enclosure or panel, keeping dust and moisture out.
How do I work out what size grommet I need?
You need two measurements: the diameter of the hole in your panel (this matches the grommet's outside groove diameter) and the diameter of the cable or wire passing through it (this matches the grommet's inside diameter). For a blanking grommet you only need the hole diameter, since there's no cable to accommodate.
What material are AIMS grommets made from?
Most of our wiring and blanking grommets are nitrile rubber or general-purpose rubber, which suit typical workshop, automotive and marine environments including light contact with oils and fuels. Screw grommets, trim bushes and clips in the range are plastic or nylon, chosen for rigidity rather than sealing.
Can I buy grommets individually, or only as a kit?
Both — Champion's CWG1 wiring grommets and CBG blanking grommets are sold individually by size, so you can buy exactly what you need. Assortment and grab kits (from Champion, GJ Works and Work Shop Buddy) bundle a spread of common sizes together, which is usually better value if you don't yet know exactly which size you'll need.
What's a screw grommet used for?
A screw grommet gives a self-tapping screw a stable, wear-resistant hole to bite into — typically in thin sheet metal, trim panels or plastic bodywork where a bare screw hole would strip out or split the material. They're sized by screw diameter or hole diameter rather than cable diameter.
Do you stock imperial (inch) sized grommets?
Yes — GJ Works supplies imperial wiring and blanking grommet kits (GKA86 and GKA95), and the Work Shop Buddy grommet grab kit covers 1/8" through to 1" hole diameters, for equipment and vehicles built to imperial measurements.
What's the difference between a grommet and a cable gland?
A grommet is a protective ring that cushions a cable against a sharp panel edge and gives a basic dust seal, but it doesn't clamp the cable or carry a certified IP rating. A cable gland is a mechanical fitting that clamps the cable, provides strain relief and carries a certified ingress-protection rating — the right choice for weatherproof enclosures or rated IP installations. For general internal cable protection, a grommet does the job.