They may either have a Phillips flat head or a slotted hex washer head. Concrete screws are commonly blue in color, with or without corrosion coating.
The threads on particle board screws are asymmetrical.Ī stainless or carbon steel screw for fastening wood, metal, or other materials to concrete or masonry. Similar to a drywall screw, except that it has a thinner shank and provides better resistance to pull-out in particle board, while offset against a lower shear strength. This is a list of types of threaded fasteners, including both screws and bolts.
