Tighten Nut Plum Hand Tighten Nuts Handle Thread Star Mechanical Black Thumb Nuts Clamping Knob Manual Nuts M4 M5 M6 M8 M10 M12 (Color : Through Hole, Size : M8 32 5pcs)

This clamping knob is made of high-quality plastic and iron, with good toughness and impact resistance, strong and durable. Widely used in related industries such as mechanical equipment, electronic equipment, communication equipment, hardware lighting, building bridges and so on. It can also be installed at the bottom of furniture to enhance stability and prevent scratches and noise. Easy to use, just align the manually tightened clamping knob with the hole of the corresponding thread diameter and screw it on, no other tools are needed to tighten it. The groove design of the knob head is ergonomic, making it easier to tighten by hand. Tight threads are not easily deformed during rolling.