1" Rubber Drill Hole Plugs with Compression Stem Various Pack Sizes 1" (other sizes also available) For additional Sizes Click HERE The dimensions listed for each plug is the hole size. The top dimension is larger in diameter than hole plug Stem bumpers are typically used as hole plugs or insertable bumpers for vibration and noise reduction. Thickness of Head: 1/16 -1/8? Silicone Rubber Durometer Hardness: 60 1" Rubber Hole Plugs, Push-In Compression Stem. Multiple Pack Sizes High Quality 2 1/2" Silicone Rubber Drill Hole Plug Dust Covers with Compression Stem Available in Packs of 2, 4, or 8 Dimensions: Top Flange Cover: 2 3/4" diameter, 1/8" thick for a polished, professional look. Stem Size: Fits 2.5" holes with a slightly larger ID for secure compression and a tight seal. Material Benefits: Silicone Rubber Construction: Highly durable, resistant to saltwater, weather, and outdoor elements. Durometer Hardness: 60 rating offers an optimal balance of flexibility and firmness. Effective Sealing: Keeps dust, debris, and moisture out while providing a clean, finished appearance. Silicone-Specific Benefits: Saltwater Resistant: Perfect for marine and coastal applications, as it does not corrode or degrade with salt exposure. Weatherproof: Highly resistant to UV rays, moisture, and extreme temperatures, ensuring long-lasting performance in outdoor environments. Flexible and Durable: Maintains shape and function over time, even under harsh conditions. Versatile Applications: Industrial Use: Ideal for sealing drill holes or as insertable bumpers to reduce vibration and noise. Protective Covers: Can serve as bumpers or protective caps for a wide range of uses. Note: The larger top flange provides a polished, finished look when installed. Designed for functionality, durability, and aesthetic appeal in various settings. For Additional Size Options Click Here Generally ships same day or next day from our CA warehouse Ships Fast and Free with Tracking 1 3/8" Rubber Hole Plugs, Push-In Compression Stem. Multiple Packs High Quality $11.95 1" Nylon Locking Hole Plugs, Black Dome Plugs Matte Finish $12.75 7/16" Nylon Locking Hole Plugs, Black Dome Plugs Matte Finish $12.95 3/8" Nylon Locking Hole Plugs, Black Dome Plugs Matte Finish $9.95 5/16" Nylon Locking Hole Plugs, Black Dome Plugs Matte Finish $9.95 1/4" Nylon Locking Hole Plugs (50 Pack) Black Dome Plugs Matte Finish $10.95 2" Nylon Locking Hole Plugs, Black Dome Plugs Matte Finish $9.95 1 3/4" Nylon Locking Hole Plugs, Black Dome Plugs Matte Finish $12.25 1 3/8" Nylon Locking Hole Plugs, Black Dome Plugs Matte Finish $10.25 1 1/4" Nylon Locking Hole Plugs, Black Dome Plugs Matte Finish $9.75 High Temperature Powder Coating Plugs 1/4"x 7/16" Tapered Silicone (Pack of 25) $11.75 XL Rubber Hole Plugs, Push-In Compression Stem. Multiple Sizes from 7/8"-2 1/2" $11.25 Small Rubber Hole Plugs, Push-In Compression Stem. 7/32 - 3/4" Diameter. 12 Pack $9.00 19mm Nylon Locking Hole Plugs, Black Dome Plugs Matte Finish $10.95 1 1/2" Nylon Locking Hole Plugs, Dome Plugs Black 10 Pack $9.95 1 1/8" Nylon Locking Hole Plugs, Black Dome Plugs Matte Finish $13.00 11/16" Nylon Locking Hole Plugs, Black Dome Plugs Matte Finish $9.95 3/16" Nylon Locking Hole Plugs, Black Dome Plugs Matte Finish $8.95