The product has never been used, the packaging was damaged during transport. Unopened product, repacked in our warehouses, in perfect working condition, warranty available. Information about this item 【High Quality Material】 The M8 star screw is made of plastic and steel. It has good performance in high temperature resistance, corrosion resistance, aging resistance and insulation. The star-shaped knob is ideal for machine tools. 【Easy to Use】 The plastic handle provides a comfortable grip and has a fully threaded design for easy installation, disassembly and adjustment. It can be attached to the bottom of furniture to improve stability and prevent scratches and noise. 【Work More Efficiently】 The star-shaped plastic head has great toughness and impact resistance, and it can also handle decent torque without being metal itself. You can easily fix the screw with a star-shaped nut by hand, no hand slipping, no need for other tools, so you can repair your tools at any time. 【Package Includes】 You can get 10 pieces of M8 x 50 mm star thread, star head diameter: 32 mm; inner thread diameter: M8; thread length: 50 mm. They are a good accessory to replace your old or broken knob handles. 【Wide Application】 Black knurled thumb screw with star and thread design, the surface is carefully polished for a comfortable grip. Widely used for machine tools, mechanical equipment, instruments and apparatus, food and industrial equipment.