Description:

Specification: Thread Type: Metric; Thread Size: M4 x 180mm; Material: Carbon Steel; Finish: Carburization + Color Zinc Plated. Application: Mainly used in Double Bed, Furniture, TV Rack Wall Hanging, etc.. How to use: It is driven by a cross groove, with uniform force, easy to lock, not easy to slip, and convenient and quick to use.. Notice: Regardless of manual or electric locking, it must be guided and slowly locked to avoid thread slippage.. Advantage: It is made of carbon steel with enough strength and proper toughness after carburizing and color zinc plating. The screw is corrosion resistant and durable..