Stainless Steel Cotter Pins

Cotter Pin Specifications

Stainless Steel Cotter Pins

18-8 stainless steel cotter pins (split pins) from 1/16" to 1/4" diameter and 1/2" to 5" long. They lock castle nuts, clevis pins and shafts, and won't rust in wet or marine use. Choose a size below.

Specifications

Material: 18-8 stainless steel
Style: extended prong (split pin)
Diameters: 1/16", 3/32", 1/8", 5/32", 3/16", 1/4"
Lengths: 1/2" to 5"

Cotter Pin length is measured from under the eye to the shortest leg.

Common Uses

Castle nuts on axles and spindles
Clevis pins and linkages
Boat rigging and trailers

FAQ

What size cotter pin do I need?
The pin size is its nominal diameter. Choose the largest pin that fits the hole, and a length that leaves enough leg to bend around the bolt or shaft.

How do I install a cotter pin?
Push the pin through the hole, then bend the longer leg back over the end of the bolt or around the shaft. Use a new pin each time; bent pins lose strength.

Free shipping on orders over $100, and orders placed before noon EST ship the same day. Purchase orders are accepted from government agencies, schools, hospitals, municipalities and companies with established credit with The Nutty Company, Inc.