5 ESSENTIAL ELEMENTS FOR TYPES OF SCREW HEADS FOR SCREWDRIVERS

Truss Head- Truss head screws have a large, mushroom-shaped head. They ordinarily Use a reduced profile and larger bearing surface area than round or pan heads. This sort of screw is often used in sheet steel programs.The root is the indented helical Component of an exterior thread (screw shaft) and the elevated helical part of an interior thread.D