Detent Pins - Steel 1 ball quick release pin
Steel detent pin for use in shear loaded applications, a non locking quick
release pin.
In imperial dimensions only, a single ball detent pin, ring pull in steel
with a zinc plate. Used as a convenient way of adjusting or removing components,
ball compression force from 5lbs.

Available in 3/16 inch diameter, 1/4", 5/16", 3/8", 7/16" and 1/2 inch diameter.
This series is only available in imperial diameters and grip lengths.
Data Sheet in pdf format provides length options here