Hardened and Tempered Washers for High Strength Structural Bolts and Nuts - Plain Hole Circular Washers, Type A
IS 6649 (A) - 1985 栓接结构用平垫圈 淬火并回火 - A型 圆形平垫
See all versions and complete specifications: Hardened and Tempered Washers for High Strength Structural Bolts and Nuts - Plain Hole Circular Washers, Type A — Full Specification Page
| Size | P | k_max | k_min | s_max | s_min | k_nominal |
|---|---|---|---|---|---|---|
| M16 | 22 | 3.1 | 4.6 | 22.52 | 40.4 | 42 |
| M20 | 26 | 3.4 | 4.6 | 26.52 | 48.4 | 50 |
| M24 | 39 | 3.4 | 4.6 | 39.62 | 70.1 | 72 |
| (M22) | 33 | 3.4 | 4.6 | 33.62 | 58.1 | 60 |
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