Also known as hitch pin clips and R-clips, these pins are easy to install and remove.

For parts that spin or are otherwise difficult to access, slide these pins in and tap them with a hammer for a temporary hold. Reposition work, then bend the prongs outward to secure.

Slide these heavy duty pins into the through-hole in a clevis pin, then hit them with a hammer to wedge the prongs open.

Twist these rings on to lock pins in place. They don't have the sharp ends of other cotter pins.

Also known as safety pins, these are easy to install and remove. Tension keeps them closed.

The double-head design lets you push or pull these pins from either side of the hole. Once in place there's little chance they will be vibrated out or knocked off.