THE 5-SECOND TRICK FOR TYPES OF SCREW HEADS

There is certainly quite a lot of theory regarding the thread of screws which we will not go into to listed here, but you can find a great specific description here on Wikipedia. You may use a Robertson’s bit to drive it or make use of a Exclusive a single for the double-sq. for higher torque application. they're produced from really hard compo

The Torx screw heads can certainly be mistaken for The interior hexagonal form However they're extra like six-pointed stars with curved locations in between the factors. This actually maximizes the surface location the bit will push against, producing Torx screw heads to generally be Among the many strongest. Binding screw heads are non-countersun