Chicago screws are widely used for DIY projects such as belts, handbags, shoes, clothes, leather bracelets, books, scrapbooks, photo albums, leather saddles, wallets, cookbooks, presentation folders, advertising brochures and so on. It's an useful accessory for your daily life.SpecificationMaterial: 304 Stainless SteelHead Diameter of Screw & Post : 8.5mm / 0.33inchPost Size: 4x6 mm / 0.16x0.24 inchAdvantageChicago leather rivets screws are made of 304 Stainless Steel, 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 chicago belt screws are easy to install and remove repeatedly with screwdriver. Simply install two parts from both sides to achieve the binding effect.