Size Name:M4x30,dia25(15pcs) Description: The main material of star knob screw: plastic, carbon steel. Function: 1. Clamping screw knob is safe, non-toxic, corrosion-resistant, high hardness, not easy to deform. 2. The tight thread is not easily deformed during the rolling process. 3. Gripandles screw knobs design, easy to install, smooth surface, comfortable to hold. 4. Uses: Widely used in lathe machinery, mechanical equipment, instrumentation, food and pharmaceutical industry equipment, etc. 5. Specifications: Example: M8x16 diameter 32 (15 PCS), refers to the screw diameter is 8mm, the length is 16 mm, the head diameter (approximately): 32mm, a set of 15 screws. The packaging includes: Clamping Knobs Screw. Tip: Please allow slight error due to manual measurement. Thanks for your understanding.
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