DIN 6331 flange nut, M20, Article number 63311020. Property class / material: steel class 10, surface finish plain. Flange Nut manufactured to DIN 6331 with ISO metric (M) 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 6331 |
| Property class / grade | CL.10 |
| Class (detailed) | CL.10 |
| Thread type | M |
| Thread diameter | 20 mm |
| Pitch | 2.5 mm |
| Thread pitch class | Coarse |
| Thread direction | Right |
| Threading | Fully Threaded |
| Key width (across flats) | 30 mm |
| Surface treatment | Plain (no plating) |
| Surface treatment code | PLAIN |
| Nut Flange Diameter | 37 mm |
| Nut Flange Thickness | 6 mm |
| Nut height | 30 mm |
| Thread standard | ISO metric (M) |
| Article number | 63311020 |
| Category | Nuts / Hexagon Nuts with Flange |
| Material | Steel class 10 |
| Primary standard | DIN 6331 |
| Standard size | M20 |
| Thread standard | ISO metric (M) |
| MOQ | 1 |