The Hillman Group the Hillman Group 962 Marine Cotter Pin 1/16 X 3/4 in. 40-Pack

A cotter pin secures two items with the use of a common hole. Place the cotter pin in the hole the bulbous head will stop the pin from moving all the way through. Then bend the open tips to secure in place. Depending on the application various sizes and finishes are available.