Check the listing for details. 50 Sets Chicago Screws, M5x6mm Brass Plated Chicago Screw Phillips, Brown. Condition: New. Listed at 13.37 USD. 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: Copper plated carbon steelHead Diameter of Screw & Post : 9.5mm / 0.374inchScrew Diameter: 4mm / 0.157inchPost Diameter: 5mm / 0.2inchPost-Length: 6mm/ 0.24inchScrew Length: 4mm/ 0.16inchPackage list: 50 pcs Screws, 50 pcs PostAdvantageChicago leather rivets screws are made of solid carbon steel and plated with Copper, which is rust-proof, durable, non-fading, anti-corrosion, anti-oxidation, round and smooth, flat and burr-free, will not make scratches on leather.