Specifications:
Thread Size: M4 (0.03 inch (0.7 mm) pitch)
Thread Length: 0.79 in (20 mm)
Head Diameter: 14mm / 0.55"
Total Length: 32mm / 1.26"
Material: Carbon steel, plastic
Finish: Zinc Plated
Color: Black.
Package included: 20 pcs x Knobs with Null
Description: Galvanized carbon steel thread studs on knobs ensure durability, strength, functionality and abrasion resistance. Sturdy metal thread studs connect together tightly and easily for a variety of applications
The textured texture on the surface provides a better grip and makes it easier to tighten and loosen the knob. The threads are neat, clear, even and deep, no slipping, no burrs.
A safe and secure thumb screw is ideal for adjusting and tightening control. Durable plastic clamping knobs provide a smooth, beautiful surface and comfortable grip.
Hand bolts with knobs that are commonly used in applications where frequent adjustments and tightening are required. Widely used in lathe, drill press, cutting machines, packaging and woodworking machinery, printing, instrument and industrial equipment, and fixtures etc.
Be sure to tighten the knobs tightly to avoid movement of the fixed assembly. Please note that excessive tightening of knobs may damage or peel threads in the joining assembly. Replace knobs as needed.