The Strongest Screwdriver: Torx Pro.
---In improving the standard Torx, they identified that it had sharp edges, which meant that the very tips of the "star" shape of the Torx screwdriver were ultra-thin (of course, since it comes to a point, like the top of a triangle.) So, Torx Pro made the edges of the star rounded, and it has become the strongest screwdriver made.
---------
Some of the strongest screw drive shapes -- in no particular order -- are:
hexagonal socket (Allen)
square socket (Roberts)
"hexalobular" socket (Torx, TTAP)
external hexagonal
external square
Some particularly weak screw drive shapes are:
flat slotted (?)
cross (Phillips, Frearson)
spanner head, dual pin (?)
The weak shapes are all too easy to strip the screw head or damage the driver or both.
Yes, but which one is the strongest? Well I'll give my vote to TORX (hexagonal star) or the somewhat similar TTAP
Chat with our AI personalities
Drive screws are more commonly used in place of nails in building today. The screw has a Phillips or square drive head, and is driven in with a drill.
A machine screw typically has a slotted or Phillips drive whereas a cap screw typically has a socket or torx head.
A nail has a smooth straight shaft and a flat head that requires a hammer to pound the nail in. A screw has rivets on the shaft and the head has a shape to it so a screwdriver is needed to screw in the screw.
The screw is not only a fastener. The screw can lift grain to high places, lift water, be used with another screw to drive machinery (called gears) They are needed to accurately machine and build machinery So nothing you own, eat or play with would be here without the screw.
A worm drive.