cotter pins
Bent wire keepers
A cotter pin is a small metal fastener, typically made of bent wire with two prongs, used to secure nuts, bolts, or other hardware by passing through a hole and bending the ends apart.
They provide a simple, reliable way to prevent parts from loosening or falling off, especially in machinery and automotive applications.
The mechanic replaced the cotter pin on the castle nut to keep the wheel bearing secure.
Also called a split pin, particularly in British English.
- securingMaking firmly fixed
- fasteningJoining two parts together
- linchpinVital securing element
- hardwareMetal goods and fittings
- wheel assemblyComplete rotating unit
safety wire · trailer hitch · connections · hold it together · locking · mechanical · retention · clip · fixing · assemblies · engineering · machinery · farm equipment · automotive repair · mechanical joint · stability · locking mechanism · load capacity