Description:1. Material: Made of 12.9 grade alloy steel, a black oxide coating finish, it has high strength, rust resistance, oxidation resistance and corrosion resistance, which can ensure long-term use.2. Advantage: Hexagonal socket head type, uniform force is not easy to slip, easy to use. Suitable for replacing old bolts at any time.3. Application: Widely used in woodworking, furniture fastening, repair industry, DIY, lathes, precision parts, etc.Specification:Product Name: Hex Socket Head BoltsColor: BlackMaterial: 12.9 Grade Alloy Steel(40Cr)Finish: Black Oxide CoatingProcessing Technology: Cold Forging+Thread RollingThread Type: Half ThreadThread Diameter: M8Rod Length(Under Head): 40mm / 1.57"Thread Length: 28mm / 1.1"Thread Pitch: 1.25mmInner Hex Width: 6mm / 0.24"Screw Head Size: 13 x 8mm / 0.51" x 0.31"(D*H)Package Content:10pcs x Hex Socket Bolts
