ISO 10511 hexagon lock nut, M20, Article number 10511201. Property class / material: steel class 5, surface finish zinc plated. Hexagon Lock Nut manufactured to ISO 10511 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 | ISO 10511 |
| Property class / grade | CL.05 |
| Class (detailed) | CL.05 |
| 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 | Zinc Bright Passivation Fe/Zn P1 (ZPL 3+) |
| Surface treatment code | ZPL |
| Nut height | 14.9 mm |
| Nut thickness | 9.1 mm |
| Thread standard | ISO metric (M) |
| Article number | 10511201 |
| Category | Nuts / Lock Nuts |
| Material | Steel class 5 |
| Primary standard | ISO 10511 |
| Standard size | M20 |
| Thread standard | ISO metric (M) |
| MOQ | 1 |