Standard Thread Size: M4 (0.7mm Pitch); Thread Length: 16mm / 0.63"; Knurled Head Diameter: 16mm / 0.63"; Total Height: 26mm / 1.02". Safe and secure knurled thumb screws for the ultimate in adjusting and tightening control. The screws are neat and clear, the force is even, and it is not easy to slip.. Tightly -in plated carbon steel metal insert ensures optimal durability and functionality, easy to install. Great for saw, drill press, lathe and routing jigs, packaging machinery, printing equipment, woodworking machinery and equipment.. Hand bolts with thermoset plastic knobs provide comfortable hand grip. The clamping knob is tight, sturdy and durable, with a smooth and beautiful surface.. Package Content: 15 Pcs x Knurled Thumb Screws Clamping Knobs..
