Rubber plugs for sheet metal
Machines often go through a lot of wiring holes before the most optimal route for them is decided. While the end product can be achieved this way, the side products are the holes left behind by the whole process. Machines and anything with metal sidings often have many unseemly spots that don’t look good and only serve to bring down their general look.
These holes in your metal sheet could also be the residue of extensive drilling operations. Whatever the cause may be, the effect looks hideous, and all reputable industries frown at such holes in their machines. Not only these holes in your metal sheet can bring your and your industry’s reputation down, but they can also allow debris and dust to enter the internal confinements of your machines. If not sealed quickly, the dust from these holes can settle down and clog the mechanisms of your devices which degrades the factory’s production value.
Rubber plugs for sheet metal are perfect for situations like these and can come in really handy for your machines. Their function isn’t much – they close the holes in the metallic components of your devices by sealing them tight with plugs made of rubber. However, it’s the irreplaceable value they provide that makes them so unique. Rubber plugs for sheet metal can be used in industrial equipment, automobiles, and even tanks to seal their holes and deliver a neat and finished look.
Rubber plugs for sheet metal do a great job of sealing holes in metallic components and also provide style and neatness for whatever hole they cover. Individually they may look fine, but once you get the bigger picture of how the product looks with all its seals closed with rubber plugs for sheet metals, you realize how great it looks. It also protects any dust or foreign material from entering inside the machines, ensuring safety.
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
- Application focus
- Metal-panel 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.
- 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.
- Fabricated-panel fit
- Use the finished sheet thickness and hole tolerance after fabrication or coating; check head coverage and engagement around the complete 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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