Black Round Rubber Feet Non-Slip Bumper with Steel Washer - 1/2” H x 1" D Tapered Rubber Foot with Steel Washer - Tapered Rubber Feet for Cutting Boards - Non-Threaded Screw Hole - Eco Friendly NBR Rubber Top Diameter: 15/16” Bottom Diameter: .780” Height: .500 Recessed Diameter: .350 Screw Hole Diameter: .220 Accepts #8 Screw Durometer: 60-65 The steel washer in the mounting hole adds additional support to prevent mounting screw secure and from breaking thru sidewall. Built-in steel washer, make it more stable and durable. Easy to install with screw, epoxy adhesive, or machine screw depending on your substrate. Our high-quality recess bumpers are used for applications that require superior protection from abrasion, compression, and vibration. Applications for recessed rubber feet include: Electronics Construction All types of cabinets Furniture Amplifier Cabinets Audio & Video Equipment Desktop Music Equipment Cutting Boards Power Generators Electric Motors Choose needed quantity. Welcome to Magic Hub store. Your satisfaction is our priority. If there are any questions before and after purchase, please welcome to contact us, we will try my best to solve all for you.