DescriptionThese manual screws, are the essential tightening and adjusting solution for your homemade workshop jigs, fixtures, wooden boards and precision saws fences, or in any other applications where stud knob will fit the bill. Suitable for woodworking and fixing works, not easy to rust and deform.Features-Color: Black. -Material: PP, zinc alloy. -Size: About 6.00X4.40X4.40cm/2.36X1.73X1.73inch. -Screw on type design for easy install, no other tools required, smooth lines and finger grip spacing for easy turning. -It can be easily installed without any tools. You only need to turn it directly by hand to install or remove it. -It is not only wear-resistant, corrosion-resistant, high-temperature resistant, but also not easy to rust. -Widely used for furniture, the rack bracket, mechanical equipment, furniture repairing, etc. -With sufficient quantity of the screws, enough for your daily use and replacement.