High-Strength Structural Bolting Assemblies For Preloading - System HRC - Bolt HRC with Countersunk Head
EN 14399 (-10 Countersunk) - 2018
Display drawing:
| Screw Thread | M20 | ||
| Thread Size | M20 | ||
| D | 20 | ||
| P | 2.5 | ||
| B | L≤125 | 46 | |
| B | 125＜L≤200 | 52 | |
| B | L＞200 | 65 | |
| Ds | Max | 20.84 | |
| Ds | Min | 19.16 | |
| Dk | Max | 40 | |
| Dk | Min | 39 | |
| K | Nominal | 13 | |
| K | Max | 13.9 | |
| K | Min | 12.1 | |
| R | Min | 1.5 | |
| Db | Nominal | 14.1 | |
| Db | Max | 14.4 | |
| Db | Min | 13.8 | |
| Dc | Min | 15.6 | |
| F1 | Min | 15 | |
| F2 | Max | 20 | |