Cotter pins can be made from several different materials that are soft enough to bend. Typically, when deforming the pin once, the pins keep their strength and provide a strong locking mechanism that can be relied on. As a general rule, cotter pins should not be reused as the extra bending weakens the pin.

Is a cotter pin reusable?

Cotter pins can be made from several different materials that are soft enough to bend. Typically, when deforming the pin once, the pins keep their strength and provide a strong locking mechanism that can be relied on. As a general rule, cotter pins should not be reused as the extra bending weakens the pin.

How many times can you use a cotter pin?

Never reuse cotter pins, because the metal weakens when bent and can break off if bent repeatedly. Cotter pins are sold with different diameters (sized for the hole in the bolt or other part that needs securing), head sizes (the head is the loop at one end of the pin) and prong lengths.