thumbscrew's Usage Examples:

You know how you 're supposed to tighten the thumbscrews on the block alternately to make sure the pressure is even all the time?These banksticks are constructed of 100% metal ' feature double brass thumbscrews with nylon tips ' T-bar.

You know how you're supposed to tighten the thumbscrews on the block alternately to make sure the pressure is even all the time?Even when bikinis were taking over in the 1950s, Marilyn Monroe did a series of photo shoots wearing a white one-piece that made plenty of hearts thump.

The air inlet is provided with a dust filter, accessed by removing two thumbscrews.

Synonyms:

screw,

Antonyms:

unscrew,