| DIN | ≈7991 |
|---|---|
| ISO | ≈10642 |
| NF | ≈E25-107 |
| Class | 08.8 |
| Diameter (d-D) | M8 |
| Driving features | Hexalobular |
| Head shape | Countersunk head |
| Length (L) | 20 |
| Material | Steel |
| Surface treatment | Zinc plated |
| Thread | Metric thread |
| Thread direction | Right |
| b (min.) | 22 |
|---|---|
| dk | 16 |
| k (max.) | 4.4 |
| P | 1.25 |
| Socket | T40 |
| a | 90º |
