Cotter pins insert into holes of certain types of fastener systems to secure them into place.
Size: 1/8 inch X 1 inchAlso known as a split pinInserts into holes of fasteners (e. clevis pins) Spreading the prongs after inserting into fastener hole secures the systemOne of the prongs is extended to make them easier to separateSpecification(s) Met: ASME B18. Once inserted through the hole, the two prongs at the opposite end can be separated and bent outward to lock the pin.The bulbous end prevents the pin from bing pulled through the hole so it is important to select a pin that has a diameter measurement larger than the hole diameter in the fastener you are working with.