High-Strength Structural Bolting Assemblies for Preloading - Part 7: System HR - Hexagon Nuts
EN 14399-7 (Hexagon Nuts) - 2018 预负载用高强度结构螺栓连接副，第7部分：HR系统 - 六角螺母
See all versions and complete specifications: High-Strength Structural Bolting Assemblies for Preloading - Part 7: System HR - Hexagon Nuts — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M12 | 2 | 24 | 0.4 | 27.12 | 12.8 | 15.1 | 14 | 9.7 | 0.8 | 21.86 | 12.1 |
| M16 | 2.5 | 36 | 0.4 | 39.55 | 19.4 | 23.7 | 22 | 14.5 | 0.8 | 33.3 | 18.1 |
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| M20 | 4 | 60 | 0.4 | 66.44 | 31 | 38.9 | 36 | 22.4 | 0.8 | 55.9 | 29.4 |
| (M14) | 2.5 | 30 | 0.4 | 32.95 | 15.8 | 19.5 | 18 | 12.1 | 0.8 | 27.7 | 15.1 |
| (M18) | 3 | 46 | 0.4 | 50.85 | 23.8 | 29.1 | 27 | 18.1 | 0.8 | 42.8 | 22.5 |
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