Size: Color: Black; Material: Carbon steel; Thick of Screw & Post: 1.5mm/0.06 inch; Head Diameter of Screw & Post : 9.5mm / 0.374inch; Screw Diameter: 4mm / 0.157inch; Post Diameter: 5mm / 0.2inch; Post-Length: 10mm/ 0.39inch; 20mm/0.79inch; 30mm/1.18inch; 40mm/1.57inch; 50mm/1.97inch; Screw Length: 5mm/ 0.2inch; 180pcs chicago screws with post (15pairs M5x4mm+15pairs M5x5mm+10pairs M5x6mm+10pairs M5x7mm+10pairs M5x8mm+10pairs M5x9mm+10pairs M5x10mm+10pairs M5x12mm ).
Advantage: Chicago leather rivets screws are made of copper plated carbon 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.
APPLICATION: Binding 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.
NOTE: The chicago screws have different sizes, head-styles, and colors to choose from.