Spax No. 10 S X 1-1/4 in. L Phillips/Square Flat Head Multi-Purpose Screws 20 pk

Patented flat head design featuring ribs on the underside of the head facilitates a clean, flush or countersunk finish in wood and acts as a brake against metal hardware to prevent stripping out. For use with either a phillips or square drive bit.
Easy to use
Made of carbon steel and zinc finish
Patented thread technology allows the screw to be driven faster
Masonry and concrete do require pre-drilling
Multiple material thread for wood, metal or masonry