THE SINGLE BEST STRATEGY TO USE FOR LEAD SCREW THREAD TYPE

A twelve-position screw drive takes advantage of two overlapped hexagon designs, one rotated by 30°. Conventional 12-place hex socket bits and wrenches suit these screws. The screw heads are generally flanged, and will healthy into regular Allen hex socket cap screw counterbores molded or machined into sections to be fixed.It can be similar to a f