How types of screw heads can Save You Time, Stress, and Money.
Types Of Screw Heads – A screw drive is actually a number of formed protrusions and chambers about the screw head that help torque being applied to it. also referred to as pig nose or twin gap, this screw head has two round holes which are reverse one another and resemble a pig’s nose. It's really a stability-model screw to avoid tampering. yo