Plain Washers for High-strength Structural Bolting Hardened and Tempered
GB /T 18230.5 - 2000 栓接结构用平垫圈 淬火并回火
See all versions and complete specifications: Plain Washers for High-strength Structural Bolting Hardened and Tempered — Full Specification Page
| Standard Body | Standard Number |
|---|---|
| GB | GB /T 18230.5 |
| ISO | ISO 7416 |
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| M12 | 17.43 | 16.92 | 4 | 4.8 | 17 | 33 | 20.04 | 19.2 | 31.4 | 3.5 |
| M16 | 23.52 | 33.15 | 5 | 5.8 | 23 | 42 | 27.44 | 26.4 | 40.4 | 4.5 |
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| M20 | 28.52 | 51.45 | 5 | 5.8 | 28 | 52 | 33.4 | 32.4 | 50.1 | 4.5 |
| (M22) | 37.62 | 80.97 | 5 | 5.8 | 37 | 66 | 43.4 | 42.4 | 64.1 | 4.5 |
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