Material: Stainless steel (304) with anti-oxidation properties. Smooth surface, very easy to install. Screw size: M6 x 25mm, Barrel nut size: Total length 12mm, Threaded hole diameter 6mm, Outer diameter: 8.0mm, suitable for 5/16 inch (8mm) hole. diameter. Versatile: The M6 hexagon socket head cap screw is very practical and reliable. It can connect furniture or parts together and will feel new after installation. It can be widely used in many scenarios such as cabinets, furniture, boards, cribs, workbenches, tables, belts, etc. Use: beds, tables, chairs, cribs or workbenches, boards, cabinets and other furniture. Package includes: 10 pieces M6 length 25mm furniture joint bolts and cap nuts set