Hex Nuts for Structural Bolting with Large Width Across Flats Heating Galvanized (Oversize Tapped) - Product Grade A - Property Class 9
GB /T 18230.7 - 2000 栓接结构用2型六角螺母（加热镀锌、加大攻丝尺寸）A级 9级
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| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 1.75 | 17.73 | 18 | 16.6 | 20.03 | 0.6 | 13 | 11.57 | 9.26 | 12 | 12 |
| M12 | 2 | 23.67 | 24 | 22.5 | 26.75 | 0.8 | 17.3 |
| 15.7 |
| 12.6 |
| 16 |
| 16.4 |
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