Description:

Thread Diameter: M4; Total Length: 48mm / 1.89"; Sleeve Size: 38mm x 6.5mm / 1.5" x 0.26"(L*D); Suitable Wall Hole Diameter: 8mm / 0.31"; Suitable Thickness Range: 10-16mm. Material: Made of galvanized steel, good oxidation resistance, rust and corrosion resistance, durable.. Application: Used for hollow base materials such as in drywall, hollow block, plaster, tile, wood boards, etc., suitable for installing light-load objects such as lamps, curtain rods, photo frames, coat racks, power switches, etc.. Advantage: The teeth of the head can be embedded into the hollow wall, which can prevent the casing from rotating in the hole during installation. The screws can be easily removed, and the mounting parts can also be disassembled and assembled.. Note: It can be installed with an ordinary screwdriver. It will be better if a special installation tool is used..