Standard Number Standard ISO 68-1:1998 ISO general purpose screw threads — Basic profile — Part 1: Metric screw threads ISO 68-2:1998 ISO general-purpose screw threads — Basic profile — Part 2: Inch screw threads ISO 261:1998 ISO general purpose metric screw threads — General plan ISO 262:1998 ISO general purpose metric screw threads — Selected … Continue reading List of ISO Standards for Screw Threads