McMaster 98355A173 316 Stainless Steel Cotter Pin 1/8″ Diameter, 2-1/2″ Long

Lock the ends of clevis pins and shafts to keep components in place. Slide these cotter pins into a hole and then bend the prongs outward with pliers to secure. Also known as split pins, one prong is slightly longer than the other for easy opening once inserted. Repeated bending will weaken the pin, so they should not be reused.

316 Stainless Steel—Superior to 18-8 stainless steel, these pins won’t degrade when exposed to harsh weather, salt water, and most chemicals. They’re strong enough to join most components but won’t withstand extreme stress and vibration as well as steel.