description: new quality feature: Made of high-quality materials, strong and durable, long service life. It has high hardness, is not easy to rust and deform, and is resistant to corrosion and wear. The five-star shaped for head thread clamping screw is suitable for industrial use. A variety of sizes and types (M8/M10) are available to meet your various needs. Clamping screws only, not including other accessories shown in the picture! specification: Project Type: Clamping screws Material: plastic + metal Size: (optional) Thread diameter: 8mm/0.3in, 10mm/0.4in Length: 25mm/0.9in, 30mm/1.1in, 35mm/1.3in, 40mm/1.5in, 45mm/1.7in, 50mm/1.9in, 60mm/2.3in, 70mm/2.7in Color: black + silver Optional types: M8-25, M8-30, M8-35, M8-40, M8-45, M8-50, M8-60, M8-70; M10-25, M10-35, M10-40, M10- 45,M10-50,M10-60,M10-70 Quantity: 5 note: No retail packaging. Transition: 1cm = 10mm = 0.39inch Due to manual measurement, please allow an error of 0-1 for cm. Please make sure you don'for t mind before bidding. Due to the differences between different monitors, the picture may not reflect the actual color of the project. Thank you! The package includes: 5 x clamping screws