DIN 933 hexagon head screw, M20 x 40, Article number 9331220040DELB. Property class / material: steel 12.9, surface finish zinc flake, black. Hexagon Head Screw manufactured to DIN 933 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 933 |
| Type | Hexagon Head Screw |
| Property class / grade | 12.9 |
| Class (detailed) | 12.9 |
| Thread type | M |
| Thread diameter | 20 mm |
| Pitch | 2.5 mm |
| Thread pitch class | Coarse |
| Thread direction | Right |
| Length | 40 mm |
| Thread length | 40 mm |
| Threading | Fully Threaded |
| Fully threaded | Yes |
| Head type | Hexagon Head |
| Drive type | Hex Drive |
| Key width (across flats) | 30 mm |
| Key depth | ZINCFLAKE BLACK mm |
| Head height | 12.5 mm |
| Surface treatment | DELTA KL100x2/SEAL BLACKx2+GZ |
| Surface treatment code | ZINCFLAKE BLACK |
| Length | 40 mm |
| Thread standard | ISO metric (M) |
| Article number | 9331220040DELB |
| Category | Bolts and Screws / Hexagon Head Screws |
| Material | Steel 12.9 |
| Primary standard | DIN 933 |
| Standard size | M20 x 40 |
| Thread standard | ISO metric (M) |
| MOQ | 1 |