4Pcs T-Shaped Wing Knobs, M6 X 20mm Thumb Screws, Standard Male Thread, Plastic Handles, Hand Tightening Knobs, Thumb Screws, Black.

Size - Standard thread size: M6 (1 mm pitch); Thread length: 20 mm / 0.79"; T-shaped head width: 36 mm / 1.42"; Total Length: 35 mm / 1.38"; Knob Style: T; Color: Black (Threads are clean and clear, force is even and deep, they do not slip easily and have no burrs). Material - The zinc-plated carbon steel threaded stems of the knobs ensure durability, strength, functionality, and wear resistance. The high-quality plastic clamping knobs offer durability, a smooth surface, and a comfortable grip. Features - The tightly fitting metal inserts are high-temperature injected to ensure a secure connection of parts and are easy to install. The T-shaped wing knobs are easy to grip and turn by hand, providing a better grip and comfort, making tightening or loosening the knob easier. Applications - Thumb screw knobs with hand bolts are commonly used in applications requiring frequent and quick adjustments or tightening. They are widely used in lathes, drills, packaging machines, and Joinery,