| Surface protection | Galvanic/electrolytic zinc plated |
| Wrench width, mm | 4 |
| Material quality | 5.6 (steel) |
| Length, mm | 16 |
| Material | Steel |
| Thread size (metric) | 4 |
| With nut | No |
| With washer | No |
| Material | Pre-galvanized |
| Threading | M4 |
| Length | 16 mm |
| Type | Hexagonal head bolt |