split pin
Definition
Noun: - A split pin is a metal fastener with two tines that are bent outward after insertion through a hole, used to secure a bolt or nut and prevent it from loosening. It is a type of cotter pin.
Usage Examples
- (A metal fastener used to secure a mechanical component.)
- (A replacement fastener for safety.)
Advanced Usage
"to split pin a joint": to secure a mechanical joint using a split pin.
- The engineer split pinned the linkage to ensure it would not vibrate loose. (The engineer fastened the joint with a split pin.)
"split pin pliers": a specialized tool for bending the tines of a split pin.
- He used split pin pliers to close the tines neatly after installation. (A tool for working with split pins.)
Variants and Related Words
Cotter pin (n): a broader term often used interchangeably with split pin, though some cotter pins are solid.
- The cotter pin was bent to secure the hitch. (A type of fastener similar to a split pin.)
Split-pin (adj): used as a modifier to describe something related to a split pin.
- The split-pin hole must be aligned with the nut slot. (The hole for the split pin.)
Synonyms
- Cotter pin: a metal pin used to secure bolts, often with a split end.
- R-clip: a similar fastener with a ring end, also used for quick removal.
Related Idioms
- "to pin something down": to fix or secure something firmly, though not specific to split pins.
- We need to pin down the schedule before the project starts. (To finalize or secure a plan.)