ISO 4032 hexagon nut, M18, Article number 40320180GEO5A. Property class / material: steel class 8, surface finish zinc flake, silver. Hexagon Nut manufactured to ISO 4032 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 4032 |
| Property class / grade | CL.8 |
| Class (detailed) | CL.8 |
| Thread type | M |
| Thread diameter | 18 mm |
| Pitch | 2.5 mm |
| Thread pitch class | Coarse |
| Thread direction | Right |
| Threading | Fully Threaded |
| Surface treatment | GEOMET 500A |
| Surface treatment code | ZINC FLAKE SILVER |
| Nut thickness | 15.8 mm |
| Width across flats | 27 mm |
| Thread standard | ISO metric (M) |
| Article number | 40320180GEO5A |
| Category | Nuts / Hexagon Nuts |
| Material | Steel class 8 |
| Primary standard | ISO 4032 |
| Standard size | M18 |
| Thread standard | ISO metric (M) |
| MOQ | 1 |