What screws wont strip? Torx-head screws have been common on automobiles for a long time, but now they’re available for general construction use too. Star-shaped Torx bits fit tightly into the star-shaped recess in the head of the screw, providing a firm grip that rarely slips out or strips the screw head.
What causes screw stripping? Working too fast and without enough care. Turning screws with screwdrivers (or a drill) at an angle to the screw. Using the incorrect sized screwdriver (particularly one that is too small) Using the incorrect sized drill bit with a power drill.
What happens if you over tighten a screw? One of the most damaging ways to do that is by over-tightening, or over torquing the fastener. This can result in stripping screws, snapping screw heads and damaging pre-tapped threading.
How tight should a screw be? For commodity items such as pipe fittings, if there’s no information on the manufacturer’s website, make between one and three TPFT until the part is firmly tight and pointing in the right direction. Always back-hold the part you’re turning against.