Feature: 1. This hex socket screw has a standard head with uniform force and good fastening effect. 2. These hex screws have deep threads, uniform pitch, clear texture and high occlusion. 3. Made of pure copper, it is not easy to rot and moisture, and the exterior is smoothly and easy to oxidize. 4. These countersunk hex socket screws have high hardness and are . 5. This flat head hex socket screw can fix components, industrial and construction fasteners. Specification: Item Type: Flat Hex Socket Screw Material: Pure Copper Head Diameter: Approx. 6mm / 0.2in Head Thickness: Approx. 2mm / 0.1in Package List: 50 x Screws