Cotter Pin Safetying
Cotter pin
installation Castellated nuts are used with bolts that have been drilled for
cotter pins. The cotter pin should fit neatly into the hole with very little
side play.
The following general rules apply to cotter pin safetying:
1. The prong bent
over the bolt end should not extend beyond the bolt diameter. (Cut it off if
necessary.)
2. The prong bent down should not rest against the surface
of the washer. (Again, cut it off if necessary.) 3. If the optional wraparound
method is used, the prongs should not extend outward from the sides of the nut.
4. All prongs should be bent over a reasonable radius. Sharp
angled bends invite breakage. Tapping lightly with a mallet is the best method
of bending the prongs.