This screw is made of carbon steel with a hardness of 4.8.
This screw is plated with nickel and is effective against corrosion and rust.
Screw gasket enhances friction and prevents it from slipping too deeply into the wood.
This kind of screw is often used in wooden houses, wooden furniture, ordinary hardness of plastic products, outdoor trees fixed items.
Description
This is a very common world universal self tapping screw, the carpenter's favourite, DIY user's good helper, can be used for any non-metallic, hardness is lower than 4.8, such as wood, plastics, clay can be used for splicing materials, fixed objects, not easy to loose, and not easy to accidentally nail is too deep inside the material.