FACTS ABOUT TYPES OF SCREW HEADS REVEALED

Flat screw heads entirely sit With all the area which leave no Section of head uncovered for that reason these screws need to be countersink. a person-way screws are Exclusive screws which can be turned only in one course. They are occasionally called a single-way clutch screws, but shouldn't be perplexed with accurate "clutch" screws. A cross or