This document specifies the general characteristics of grooved pins, made of steel and stainless steel, with nominal diameters 1 mm to 25 mm.
These grooved pins are designed to fulfil the main following functions, due to the elastic fit behaviour of the grooves:
locking of two (or more) parts,
positioning or guiding,
relative rotation of the assembled parts.
BSI recommends this version of standard for organisations operating in or with the UK. The ISO edition is available here if required.