Whitworth
/ˈwɪtwəθ
/noun [as modifier]
Denoting a standard series of screw threads in imperial sizes.They were also less prone to misalignment or cross threading than either the traditional design or even the Whitworth thread....
- I have an old machine which has Whitworth screws on so to find out which they were I got a Whitworth thread gauge from my local D.I.Y. shop.
Origin
Late 19th century: from the name of Sir Joseph Whitworth (1803–87), English engineer.