How types of screw heads can Save You Time, Stress, and Money.
For this type of screw, “JIS” standardized cruciform-blade screwdrivers are available and ought to be used all of the time to avoid driver and head harm. you could have heard this sort of screw head referred to as a Robertsons. The square Heart stops cam outs. given that the title implies, the lifted screw will stick previously mentioned the