BSI BS EN 28746
BS BS EN 28746 1989-FEB-28 Grooved Pns wth Round Head-AMD 7493 November 1992 Superseded by BS BS EN SO 8746
BS BS EN 28746 1989-FEB-28 Grooved Pns wth Round Head-AMD 7493 November 1992 Superseded by BS BS EN SO 8746
Pins which have three equally spaced grooves impressed longitudinally on their exterior surface, with metric dimensions and nominal diameter from 1.4 to 20 mm inclusive.