A Split Cotter Pin is a simple fastening device to prevent parts being released off the end of a shaft. Alternatively, they can be very useful to prevent nuts coming undone off a threaded fastener by simply drilling through nut and bolt. The outside diameter of the pin is made marginally smaller than the hole size to give easy fit. Once inserted the legs are bent over in opposite directions to complete the fastening. 

They can also be used in conjunction with Clevis Pins, as shown below.

We offer Split Cotter Pins in two materials, Mild Steel (with a bright zinc plate finish) or A2 Stainless Steel.

You can check out our range using the links below.