How types of screw head drives can Save You Time, Stress, and Money.
Hex screw heads are of two types—external and inside. Exterior screw heads are hexagonal and protrude from your floor, searching much like a bolt head. Some hex external screw heads have in-developed flanges, while some make do Along with the hexagon for that head.A mixture generate screw head permits equally phillips and flat bladed screwdrivers