How types of screw heads square can Save You Time, Stress, and Money.
A twelve-stage screw drive employs two overlapped hexagon designs, one rotated by 30°. Regular twelve-point hex socket bits and wrenches match these screws. The screw heads are generally flanged, and could healthy into normal Allen hex socket cap screw counterbores molded or machined into pieces to be fixed.To effectively fasten a screw into put,