and 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 Head Thread Clamping Screws, suitable for industry use.Various sizes and types(M6 or M8) optional, to meet your various needs.Clamping Screws only, other accessories demo in the picture is not included Specifications:Item Type: Clamping ScrewsMaterial: plasticandmetalSize: (Optional)screw thread diameter: 6mm or 0.2in, 8mm or 0.3inlength: 16mm or 0.6in, 20mm or 0.7in, 25mm or 0.9in, 30mm or 1.1in, 35mm or 1.3in, 40mm or 1.5inColor: BlackandSilverOptional Type: M6-16, M6-20, M6-25, M6-30, M6-35, M6-40, M8-16, M8-20, M8-25, M8-30, M8-35, M8-40Quantity: 10 PCS Note:No retail package.Transition: 1cm=10mm=0.39inchPlease 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 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.