brand new and high quality Feature: Made of high-quality materials, durable, firm and has a long service life. Has high hardness, not easy to get rust and deformed, anti-corrosion and anri-abrasion. Five-star Shaped for Head Thread Clamping Screws, suitable for industry use. Various sizes and types(M6/M8) optional, to meet your various needs. Clamping Screws only, other accessories demo in the picture is not included! Specifications: Item Type: Clamping Screws Material: plastic+metal Size: (Optional) screw thread diameter: 6mm/0.2in, 8mm/0.3in length: 16mm/0.6in, 20mm/0.7in, 25mm/0.9in, 30mm/1.1in, 35mm/1.3in, 40mm/1.5in Color: Black+Silver Optional Type: M6-16, M6-20, M6-25, M6-30, M6-35, M6-40, M8-16, M8-20, M8-25, M8-30, M8-35, M8-40 Quantity: 10 PCS Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 10 x Clamping Screws