shear pin

noun

Definition of shear pin

: an easily replaceable pin inserted at a critical point in a machine and designed to break when stressed to excess

First Known Use of shear pin

circa 1931


Learn More about shear pin


Seen and Heard

What made you want to look up shear pin? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!