STANDARD METRIC: Our M8 screws correspond to the standardized metric system. Scope of delivery: M8 x 80 mm (8 pcs) / thread size diameter: 8 mm; Pitch size: 1.25 mm; cycleWidely used; Commonly used in machinery, furniture, car and motorcycle repairs and DIY inventions. Warm tip: The product contains small parts. Do not let children play to avoid accidental swallowing. We offer our customers high quality products. For this reason, we employ professional customer service staff to ensure every customer's satisfaction. So if you have any problems after purchasing our product, please contact us. We are always here. for her. MATERIAL: 100% stainless steel 304 (A2-70), high hardness, corrosion resistance, can be used in humid environments and do not worry about rust. STANDARD METRIC: STANDARD SIZE (Tolerance: ±0.005 mm): Uniform force, arranged in the center of the head without displacement, not easy to slip; Uniform pitch, clear screw thread, no residual burrs, tight screw threads can achieve good adhesion.