Rubber hole plug
The rubber hole plug is one of the vital elements of today’s world, and these accessories have been applied to many different products that we all use every day. Even though they are mostly used in the automotive industry, they find their purpose in so many different gadgets, electronic devices, and even household items to give an additional layer of protection and make our days better.
There are different types of the rubber hole plug and you should choose one depending on your project, the type of hole that you want to seal, and your overall preferences. Note that depending on the type of rubber they are made of, they can withstand extreme temperatures, and they can provide protection from different elements including water, a variety of liquids, and harsh chemicals. Know that when you choose the best accessory for your need, you should pay close attention to the size, as they come in a variety of ranges, and not every size will be the best match for your project. You need a rubber hole plug that will securely seal the hole, without leaving any space between the edges of it, and at the same time, it should easily slide inside the unit without bending or damaging.
The rubber hole plug is made of flexible materials, so you should not have to apply too much pressure when installing it. These accessories are a cost-effective solution when it comes to safeguarding your equipment from any type of weathering, damage, or leakage. They can be used in pretty much every hole and they are specifically recommended for implementation when it comes to transportation or storage. The rubber hole plug comes in a range of sizes, shapes, and designs, and you can choose if you want to purchase something that is already available on the market, or if you want to get a specific custom design that will fit your project the most.
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
- 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 vehicle body openings.
- Exposure to evaluate
- Heat and cold cycling. 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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