the.com/torx
the screw shape that stops your screwdriver from slipping and your knuckles from bleeding.
means A type of screw and matching driver with a six-pointed star-shaped recess, designed to grip securely and resist cam-out (the slipping that strips ordinary screws).
from A trademarked name coined by the American fastener company Camcar (a division of Textron) in the late 1960s. The name itself is a coinage rather than a real word — suggestive of 'torque,' the twisting force the design is built to transfer cleanly, with that hard 'x' giving it an engineered, branded snap. Because 'Torx' is a registered trademark, the generic terms 'star drive' and 'hexalobular' are used by makers who haven't licensed the name.
- star shape
- Six-pointed star, designed to resist cam-out
- born 1967
- Invented by Camcar Textron in Illinois
- security version
- A center pin blocks standard bits entirely
- name origin
- From torque, the whole point of it
- sizes go T1
- Tiny T1 fits eyeglasses and electronics
torx t5 screw — smallest standard torx size, 0.381mm point diameter, used in eyeglasses and electronics
torx t50 screw — largest standard torx size, 3.81mm point diameter, used in automotive and heavy equipment