Cotter pins, DIN 94
Industrial supplies
Cotter pins to DIN 94 and ISO 1234 lock bolts, clevis pins and shafts against axial movement. This category holds 124 versions with nominal diameters from 1.6 to 6.3 mm and lengths from 12 to 80 mm, made from zinc-plated steel or stainless steel A2.
Selection follows the nominal diameter, which is set by the cross hole in the bolt, and the length, which follows from the thickness of the assembly plus the projection needed to splay the legs. The material follows the ambient conditions: zinc-plated steel for dry duty, stainless steel A2 under corrosive load.
Cotter pins retain pinned joints in machine building, jig construction, conveyor equipment and agricultural machinery, wherever a joint has to stay releasable without tools. The pin is pushed through the cross hole of the bolt and the legs are then bent apart. Stainless steel A2 versions are used where zinc-plated steel does not survive the environment, for instance outdoors or under wash-down cleaning.
