ISO 7414 - 1984 Hexagon Nuts For Structural Bolting With Large Width Across Flats, Style 1-Product Grade B
Equivalent norms included: GB/T 18230.4, EN 14399-4, UNI 5713
| Legend | Making |
| P=pitch | Carbon Steel:10 |
| K=height of the nut | Thread:6H |
| D=the nominal diameter of the thread | Surface:BLK,ZP,HDG,etc |
| E=The length of the diagonal | |
| S=The length of the flat |
ISO 4775 - 1984 Hexagon Nuts For High-Strength Structural Boltinig With Large Width Across Flats—Product Grades B—Property Classes 8 And 10
Equivalent norms included: ANSI/ASME B 18.2.4.6M
| Legend | Making |
| P=pitch | Carbon Steel:10 |
| K=height of the nut | Thread:6H |
| D=the nominal diameter of the thread | Surface:BLK,ZP,HDG,etc |
| E=The length of the diagonal | |
| S=The length of the flat |
ISO 7417 - 1984 Hexagon Nuts For Structural Bolting—Style 2, Hot-Dip Galvanized(Oversize Tapped)-Product Grade A—Property Class 9
| Legend | Making |
| P=pitch | Carbon Steel:8,10 |
| K=height of the nut | Thread:6H |
| D=the nominal diameter of the thread | Surface:BLK,ZP,HDG,etc |
| E=The length of the diagonal | |
| S=The length of the flat |