ISO 4017 hexagon head screw, M20 x 50, Article number 40178200501. Property class / material: steel 8.8, surface finish zinc plated. Hexagon Head Screw manufactured to ISO 4017 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 4017 |
| Type | Hexagon Head Screw |
| Property class / grade | 8.8 |
| Class (detailed) | 8.8 |
| Thread type | M |
| Thread diameter | 20 mm |
| Pitch | 2.5 mm |
| Thread pitch class | Coarse |
| Thread direction | Right |
| Length | 50 mm |
| Thread length | 50 mm |
| Threading | Fully Threaded |
| Fully threaded | Yes |
| Head type | Hexagon Head |
| Drive type | Hex Drive |
| Key width (across flats) | 30 mm |
| Head height | 12.5 mm |
| Surface treatment | Zinc Bright Passivation Fe/Zn P1 (ZPL 3+) |
| Surface treatment code | ZPL |
| Length | 50 mm |
| Thread standard | ISO metric (M) |
| Article number | 40178200501 |
| Category | Bolts and Screws / Hexagon Head Screws |
| Material | Steel 8.8 |
| Primary standard | ISO 4017 |
| Standard size | M20 x 50 |
| Thread standard | ISO metric (M) |
| MOQ | 1 |