is a masonry screw which is specifically designed for fixing into masonry and concrete. The product is a low profile, siddwrench driven, high-performance masonry fastener. It provides excellent load bearing performance, and a unique design enables it to be used on heavier loads, be it wood, steel, electrical or other materials. The product is manufactured from A4 stainless steel and comes complete with an integral hexagon head for secure fastening and is corrosion resistant. The thread features a sharp Type 17 point for easy penetration of even the hardest materials, with a drill bit also included where necessary. The head features a cylindrical recess, and is W-marked for secure fixing and extra corrosion protection. The wide range of sizes available, from Ø 3.5 to 8.0 mm, make this fastener perfect for almost any application.