NOT KNOWN FACTUAL STATEMENTS ABOUT TYPES OF SCREW HEADS

A slotted screw head was the first form of screw heads to be made. it had been The most affordable to create and was straightforward. Phillips head screwdrivers appear in many different dimensions, with the most common dimensions starting from #0000 to #four. The size of a Phillips head screwdriver is indicated by numbers, as well as the reduced t