Hexagon Head Bolt DIN 931 (ISO 4014) Steel 8.8 Zinc Plated Cr3 M4 X 55
- Product Code: HTBMET00400055Z
 
| Material | Steel | 
| Property Class | 8.8 | 
| Surface Treatment | Zinc Plated Cr3 | 
| Head Type | Hexagon Head | 
| Driving Feature | Hexagon WS7 | 
| Thread | Metric | 
| Thread Design | Partial thread | 
| DIN | 931 | 
| ISO | 4014 | 
| ASME | B18.2.3.1M | 
| NF | E25-112 | 
| Diameter (d1) | M4 | 
| Length (L) | 55 | 
| Thread Length (b): Lā¤125mm | 14 | 
| Head Height (k) | 2.8 | 
| Pitch (P) | 0.7 | 
| Across Flats (s) | 7 | 
| Across Corners (e) | 7.66 | 
