Are you looking for a professional, yet affordable clamping screw knob? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our clamping screw knob must meet your needs. It is one of the best choices for you. Features -Color:Black-Material:ABS, carbon steel-Size:4.80X3.60X3.60cm/1.89X1.41X1.41in- Adopt premium plastic handle, which is thick enough and comfortable to hold.- In addition, the long bolts are made of carbon steel to hold tight, resist corrosion and break easily, ensuring long-term durability!- Star knob nuts are used as fixtures, fixtures, accessories, etc. They give you a non-slip and comfortable grip. At the same time, it provides smooth adjustment in various applications without being scratched.- This hand screw is widely used in electronic equipment, furniture decoration, mechanical equipment, and etc.- Excellent craft, carefully down to every detail to give it a chic and beautiful look.Packing list: 20 x T Track Bolts