DASt021 Steel Construction Washer
Heat treated, countersunk washer that is used for high strength bolts used in steel construction. Mostly used with EN 14399-3 bolt and DIN 14399-4 nuts.
Hardness Class: 295-350 HV10
| Nominal Thread Diameter | d | dc | h | c | e | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| (Min) | (Max) | (Min) | (Max) | (Nom) | (Min) | (Max) | (Min) | (Max) | (Min) | (Max) | |
| M39 | 40.4 | 41.02 | 70.8 | 72 | 6 | 5.4 | 6.6 | 3 | 3.5 | 1.25 | 2.5 |
| M42 | 43.4 | 44.02 | 76.8 | 78 | 8 | 6.8 | 9.2 | 3 | 3.5 | 1.5 | 3 |
| M45 | 46.4 | 47.02 | 83.6 | 85 | 8 | 6.8 | 9.2 | 3.4 | 4 | 1.5 | 3 |
| M48 | 49.4 | 50.02 | 90.6 | 92 | 8 | 6.8 | 9.2 | 3.4 | 4 | 1.5 | 3 |
| M56 | 58 | 58.74 | 103.6 | 105 | 10 | 8.8 | 11.2 | 4 | 4.5 | 2 | 4 |
| M64 | 66 | 66.74 | 113.3 | 115 | 10 | 8.8 | 11.2 | 4.5 | 5 | 2 | 4 |
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Weight:
| Nominal Thread Diameter | d | dc | h | c | e | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| (Min) | (Max) | (Min) | (Max) | (Nom) | (Min) | (Max) | (Min) | (Max) | (Min) | (Max) | |
| M39 | 40.4 | 41.02 | 70.8 | 72 | 6 | 5.4 | 6.6 | 3 | 3.5 | 1.25 | 2.5 |
| M42 | 43.4 | 44.02 | 76.8 | 78 | 8 | 6.8 | 9.2 | 3 | 3.5 | 1.5 | 3 |
| M45 | 46.4 | 47.02 | 83.6 | 85 | 8 | 6.8 | 9.2 | 3.4 | 4 | 1.5 | 3 |
| M48 | 49.4 | 50.02 | 90.6 | 92 | 8 | 6.8 | 9.2 | 3.4 | 4 | 1.5 | 3 |
| M56 | 58 | 58.74 | 103.6 | 105 | 10 | 8.8 | 11.2 | 4 | 4.5 | 2 | 4 |
| M64 | 66 | 66.74 | 113.3 | 115 | 10 | 8.8 | 11.2 | 4.5 | 5 | 2 | 4 |
