ISO 273:1979 Fasteners; Clearance holes for bolts and screws
ISO 898-1:2013 Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studs with specified property classes - Coarse thread and fine pitch thread
ISO 898-2:2012 Mechanical properties of fasteners made of carbon steel and alloy steel - Part 2: Nuts with specified property classes - Coarse thread and fine pitch thread
ISO 898-6:1994 Mechanical properties of fasteners - Part 6: Nuts with specified proof load values - Fine pitch thread
ISO 965-2:1998 ISO general purpose metric screw threads - Tolerances - Part 2: Limits of sizes for general purpose external and internal screw threads - Medium quality
GOST ISO 2320-2015 history
2015GOST ISO 2320-2015 Prevailing torque type steel nuts. Mechanical and performance properties