MECCANIXITY 20 Pcs Threaded Knurled Thumbscrew, M4 x 8mm Monitor Mount Arm Screws Stainless Steel Clamping Knobs Grip Thumb Screw for Computer TV

What is this? Knurled thumb screws are widely used for frequent adjustments or tightening, great for monitor arms, mounts, TV brackets, lathes, drill presses, sawing machines, equipment, and other mounting systems. What will I get? Monitor Mount Arm Screws Color: Black Threads Diameter: M4 Thread Length: 8 mm / 0.31 inch Head Diameter: 13 mm / 0.51 inch Step Size: 10 x 1.8 mm / 0.39 x 0.07 inch(D*T) Total Length: 18 mm / 0.71 inch Material: 304 Stainless Steel, PP Package Content: 20 x Thumb Screw Are there any advantages of the product? The 304 stainless steel mounting screw provides rust, corrosion resistance, and durability, while the PP plastic knurled texture knobs offer a comfortable, non-slip grip for easy installation and adjustment. How to use it? Select screws of appropriate specifications, insert the screws into the screw holes at the corresponding positions, and tighten the screws by hand or with tools. What should I notice? Ensure the threaded knob handle is tightened to prevent movement of the fixed assembly. Do not over-tighten to avoid damage to mating threads.