DIN 7984 socket head screw with hex drive, M20 x 40, Article number 7984A42004080. Made in stainless steel a4. Socket Head Screw with Hex Drive manufactured to DIN 7984 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 7984 |
| Type | Socket Head Screw |
| Property class / grade | A4 |
| Class (detailed) | A4 |
| 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 |
| Tapping length | 40 mm |
| Threading | Fully Threaded |
| Fully threaded | Yes |
| Head type | Round Head |
| Drive type | Hex Drive |
| Key width (across flats) | 14 mm |
| Key depth | 7.5 mm |
| Head height | 11 mm |
| Head diameter | 30 mm |
| Surface treatment | Plain (no plating) |
| Surface treatment code | PLAIN |
| Screw Top Radius | 1.2 mm |
| Length | 40 mm |
| Thread standard | ISO metric (M) |
| Article number | 7984A42004080 |
| Category | Bolts and Screws / Socket Head Screws |
| Material | Stainless A4 |
| Primary standard | DIN 7984 |
| Standard size | M20 x 40 |
| Thread standard | ISO metric (M) |
| MOQ | 1 |