Package Includes: There are totally 10 assorted bolt and nut sets in each carton pack, plus a hex wrench to help you complete the installation without hassle. It is very convenient and easy to store, not difficult to lose the accessories. Anti-Rust and Durable: The binding screw post is made of high quality carbon steel, black powder coated, hard and durable. It is not easy to rust and can be used in damp places. Exquisite workmanship: The bolt thread is clear and deep, without burrs, which can achieve very strong fastening effect; moreover, the interior hexagon groove design can be matched well with the hexagon wrench to prevent slippage during installation. Easy to Use: First, open a hole 0.5mm larger than the diameter of the nut shank, put the screws and nuts on both sides of the object to be locked, then use a hex key or a suitable tool to lock it in place and complete the attachment. Wide Application: This binding screw post is suitable for thin photo albums, decorative bags, belts, sandals, boots, leather bags, etc. It is suitable for the production of various arts and crafts and leather goods and DIY clothing. Specification Product name: Matching black nut. Material: Carbon Steel, Black Plated Color: Black Quantity: 10 sets Detailed measurement Bolt size: 6 x 35 mm Bob head diameter: 12mm Package Contents 10 Black Bolt Posts 10 Black Turnbuckles Note: Manual measurement, please allow slight error, please refer to the actual product.