3pcs Carbon steel threaded knurled finger screw, mounting bolt, knob, grip, black circular clamping screw

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DURABLE - The surface of the thumb screw is smooth and neat, comfortable to hold, corrosion-resistant and wear-resistant. EASY TO INSTALL - Please confirm the screw size applicable to your device before purchasing. To install, just screw in the male thread knurled clamping knobs by hand. RECOMMENDATION - To prevent the screws from bottoming out on some computer monitors, it is recommended that you use washers as a buffer when mounting. PACKAGE INCLUDE - You will receive 3 pieces grip knob thumb screws in black color. Hand Knob with Stud: The zinc plated carbon steel threaded stud on the knob ensure durability, strength, functionality and wear resistance. The tightly-in metal threaded stud can securely join components together, easy to install, suitable for various applications. Features: The knurled texture on the surface provides better grip, making it easier to tighten or loosen the knob. Threads are neat and clear, the force is even and deep, not easy to slip, and there are no burrs. Durable plastic knobs provide a smooth and beautiful surface as well as a comfortable grip. Applications: Knurled knobs are commonly used in applications that require frequent adjustments or tightening. Widely used in lathes, drill presses, sawing machines, packaging and woodworking machinery, printing, instrument and industrial equipment, and fixtures.