DIN 985 hexagon lock nut, M4, Article number 98504SK. Property class / material: steel class 6, surface finish zinc plated, black passivated. Hexagon Lock Nut manufactured to DIN 985 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 985 |
| Property class / grade | CL.6 |
| Class (detailed) | CL.6 |
| Thread type | M |
| Thread diameter | 4 mm |
| Pitch | 0.7 mm |
| Thread pitch class | Coarse |
| Thread direction | Right |
| Threading | Fully Threaded |
| Key width (across flats) | 7 mm |
| Surface treatment | Zinc Black Passivation Fe/Zn P4 (ZB 3+) |
| Surface treatment code | ZPL BLACK |
| Nut Diameter | 7.66 mm |
| Nut height | 5 mm |
| Thread standard | ISO metric (M) |
| Article number | 98504SK |
| Category | Nuts / Lock Nuts |
| Material | Steel class 6 |
| Primary standard | DIN 985 |
| Standard size | M4 |
| Thread standard | ISO metric (M) |
| MOQ | 1 |