Rubber Hole Plugs For Sheet Metal
Whenever there is a hole to be plugged, it may be hard to find the proper solution to do so. If the hole is too large, you can’t weld it shut without it looking like a botched repair job. This is especially true when it comes to sheet metal. If you try and weld another piece of metal on top of it, it’s just going to look ugly. Fortunately, rubber hole plugs for sheet metal exist and are very easy to obtain and use.
Rubber hole plugs for sheet metal can be used in a variety of situation. Basically, wherever there is a hole that needs to be plugged, these can get the job done. For instance, let’s say you’ve bought a used car and the previous owner has done some “custom job” to it and left you with holes that let dirt and water inside your vehicle. Taking the car to the mechanic would be too expensive, but using rubber hole plugs for sheet metal wouldn’t. Not only would it be far more affordable, but you’d be able to do it all by yourself in a matter of minutes or even less.
These rubber hole plugs for sheet metal are made from a variety of different rubbers. They could be made from natural rubber, neoprene, silicone and so on. All of these offer remarkable insulation, protection from dust and water and can also withstand both very high and very low temperatures, making them ideal for a variety of application. Also, rubber can be easily painted over, so you could hide them in plain sight if needed. Furthermore, we can customize rubber hole plugs for sheet metal according to your needs. All you’d have to do is provide us with a design and dimensions you need and we’d do the rest. If you aren’t sure which kind, type or size you need, we could also advise you on that as well.
Stopper & Plug Size Catalog
Compare four stopper profiles and check the selected part dimensions against your opening and available depth. Each profile has its own drawing and dimension meanings.
Custom colors are available to your Pantone color code. Include the code in your inquiry.
RST T-Shaped Plugs
Match stem diameter A, flange diameter B, stem length C and flange thickness D. E refers to the underside recess; use the selected row and approved drawing to confirm the actual profile.

RSA Tapered Corks
Compare large-end diameter A, small-end diameter B and Height, in mm. The mating bore and required seating depth determine where the taper contacts the opening.

RSB Undercut Plugs
Compare neck diameter A, flange diameter B, flange-to-lip distance C and flange thickness D. Check panel thickness and rear clearance. E refers to the underside recess.

RSD T-Shaped Stoppers
Compare stem diameter A, flange diameter B, stem length C and head thickness D, in mm. Check the seating surface and available depth as well as the hole diameter.

Need a different fit? Share the opening dimensions, mating profile and intended use for a custom size.
Discuss Your RequirementsProduct specifications
- Product form
- Blanking insert for an unused panel opening
- Material options discussed
- Silicone, chloroprene rubber (CR) and natural rubber / latex. Choose one formulation for the actual contact and loading conditions.
- Application focus
- Metal-panel openings and vehicle body openings. Size the part against the selected assembly.
- Dimensions to confirm
- Opening profile, panel thickness, retaining groove and head overlap. Match these to metal-panel openings and vehicle body openings.
- Exposure to evaluate
- Dust or debris. Validate the selected material under the combined conditions.
- Panel engagement
- Seat the head against the panel and check retention at the actual cut edge.
Need a quote or a custom part?
Send your requirements, drawings or samples to discuss standard and custom silicone rubber parts.
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