Sheet metal rubber hole plugs
Sheet metal is used in pretty much every industry, but it is most commonly utilized in the automotive one and in every heavy-duty field. Even though these things can help you create and support different items, they also come with really sharp edges that could damage or break other equipment that is used along with the sheet metal. When we make holes in this product, there is almost no way to make the holes blunt enough so that they don’t cut the cables and cords that pass through them. Luckily, with the sheet metal rubber hole plugs, you don’t have to waste any time and effort into sanding the edges of the openings, and you don’t need to worry about how you are going to protect the wires and other types of equipment. As the name suggests, the sheet metal rubber hole plugs are used to seal any openings that are made on the metal and they are going to not only protect you from the sharp edges, but they are also going to prevent anything from penetrating inside your equipment.
The sheet metal rubber hole plugs that we offer vary in size and type, and we can aid you in choosing the right type for your specific needs. Note that these units have also an aesthetic value because they are going to help you remove any imperfections that you have on your product. The rubber is a material that will not get damaged no matter where you place it and what it comes in contact with, so even if you install the sheet metal in a device that is under a lot of pressure, or is exposed to extreme heat or light, the sheet metal rubber hole plugs will not be affected in any way. These units are really durable, easy to install, so you won’t have to worry about maintaining or replacing them for a long time.
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.
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 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.
- 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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