It is used for office stationery, leather goods, apparel, arm belts, and similar applications. It provides functions including combination, connection, fixation, and wear resistance. When used for binding booklets, photo albums, etc., first drill a hole at the desired position—the hole diameter should be 0.5 mm larger than the nut rod diameter of the binding screw. Select the appropriate screw length based on the thickness of the booklet, then insert both ends into the holes to connect and secure. APPLICATION: Suitable for thin albums, decorative bags, leather belts, sandals, boots, leather bags, helmets, and various art, leather craft, and DIY clothing projects. INSTRUCTIONS: Drill a hole 0.5 mm larger than the nut rod diameter. Place the screw and nut on opposite sides of the material, then use an appropriate tool to tighten securely. ADVANTAGE: Precision-machined threads, made from high-quality stainless steel with rust-resistant properties. Ideal for leather clothing and accessories. Colour: silver Material: stainless steel Package Contents: 10 x single screws (M6 × 20 mm) 10 x lock nut pairs (M6 × 18 mm) NOTICE: To ensure proper locking, the total thickness of the material being fastened must be less than the combined length of the screw shank and nut. This package includes only the items listed above. Note: Variations in lighting and screen settings may cause slight color differences between the image and the actual product. Measurement tolerance: ±1–3 cm.