DIN 431-B hexagon nut (form B), G 1/2", Article number 431B121. Property class / material: steel 14h, surface finish zinc plated. Hexagon Nut manufactured to DIN 431 with ISO 228-1 parallel pipe thread (G) thread, coarse pitch, fully threaded. Standard parts to the same standard, property class, dimensions and surface finish are interchangeable between manufacturers; confirm the controlling standard revision, any class-society or application approval, and the mating thread before substitution.
| Standard | DIN 431 |
| Standard description | B |
| Property class / grade | 14H |
| Class (detailed) | 14H |
| Thread type | G |
| Thread diameter | 20.955 mm |
| Pitch | 1.814 mm |
| Thread pitch class | Coarse |
| Thread direction | Right |
| Threading | Fully Threaded |
| Surface treatment | Zinc Bright Passivation Fe/Zn P1 (ZPL 3+) |
| Surface treatment code | ZPL |
| Nut thickness | 8 mm |
| Width across flats | 34 mm |
| Thread standard | ISO 228-1 parallel pipe thread (G) |
| Article number | 431B121 |
| Category | Nuts / Hexagon Pipe Nuts |
| Material | Steel 14H |
| Primary standard | DIN 431 |
| Standard size | G 1/2" |
| Thread standard | ISO 228-1 parallel pipe thread (G) |
| MOQ | 1 |