NOT KNOWN FACTUAL STATEMENTS ABOUT TYPES OF SCREW HEADS

Types Of Screw Heads – A screw travel is basically a number of formed protrusions and chambers around the screw head that enable torque being applied to it. Slot screw drives are driven that has a “frequent blade” or flat-bladed screwdriver and have one horizontal depression (the slot) in the fastener head. as it was the initial sort of scre