ISO 4775:1984

Hexagon nuts for high-strength structural bolting with large width across flats — Product grade B — Property classes 8 and 10

Specifies series with metric dimensions and thread sizes from M 12 up to and including M 36 for use with bolts of prperty classes 8.8 and 10.9; tabulates specifications and reference standards, proof load values, thread dimensions for hot dip galvanized nuts, and for testing nut rotation requirements.