Check the listing for details. 12mm Studs for Clothing, 12 Sets Spikes Leather Rivets, Pine. Condition: New. Listed at 11.46 USD. Leather punk spikes screws are widely used for DIY projects such as belts, handbags, bags, shoes, jacket, clothes, leather, leather saddles, wallets, fabric, leathercraft, decorative, crafts, and so on. It's an useful accessory for your daily.SpecificationMaterial: alloySpikes Height : 12 mm / 0.47 inchScrew Size: 8x7mm / 0.35x0.28 inch ( Head x Height )Package list: 12 Set punk leather studs and spikesAdvantageCone studs and spikes are made of alloy, which is rust-proof, durable, non-fading, anti-corrosion, anti-oxidation, round and smooth, flat and burr-free, will not make scratches on leather.Instruction The metal spike studs are easy to install and remove repeatedly with screwdriver. Simply install two parts from both sides to achieve the binding effect.