These cotter rings (aka "Ring Dings", "Safety Rings", and even "Circular Pins") do not have the pre-bent end. A little harder to get on the pin, but less likely to catch on lines, flesh, etc.
|Part #||Use With Pin Dia. (in)||Ring Dia. (in)|
|JHR2P1||3/16 to 1/4||5/8|
|JHR3P||1/4 to 3/8||3/4"|
|JHR5P||1/2 to 5/8||1 3/16|