SPECIFICATION: Thread Type: Metric; Thread Size: M6x12mm 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 during the initial introduction to avoiding thread slippage. ADVANTAGES: It is made of carbon steel with enough strength and proper toughness. The screw is corrosion resistant and durable.