BS 4464 Single Coil Square Section Spring Washers
| Nom. Size, d | Inside Dia., d1 | Thickness & Width, s | O.D., d2 Max | Radius, r Max | |
|---|---|---|---|---|---|
| Max | Min | ||||
| BS 4464 - M3 | 3.3 | 3.1 | 1 ±0.1 | 5.5 | 0.3 |
| BS 4464 - M3.5 | 3.8 | 3.6 | 1 ±0.1 | 6 | 0.3 |
| BS 4464 - M4 | 4.35 | 4.1 | 1.2 ±0.1 | 6.95 | 0.4 |
| BS 4464 - M5 | 5.35 | 5.1 | 1.5 ±0.1 | 8.55 | 0.5 |
| BS 4464 - M6 | 6.4 | 6.1 | 1.5 ±0.1 | 9.6 | 0.5 |
| BS 4464 - M8 | 8.55 | 8.2 | 2 ±0.1 | 12.75 | 0.65 |
| BS 4464 - M10 | 10.6 | 10.2 | 2.5 ±0.15 | 15.9 | 0.8 |
| BS 4464 - M12 | 12.6 | 12.2 | 2.5 ±0.15 | 17.9 | 0.8 |
| BS 4464 - M14 | 14.7 | 14.2 | 3 ±0.2 | 21.1 | 1 |
| BS 4464 - M16 | 16.9 | 16.3 | 3.5 ±0.2 | 24.3 | 1.15 |
| BS 4464 - M18 | 19 | 18.3 | 3.5 ±0.2 | 26.4 | 1.15 |
| BS 4464 - M20 | 21.1 | 20.3 | 4.5 ±0.2 | 30.5 | 1.5 |
| BS 4464 - M22 | 23.3 | 22.4 | 4.5 ±0.2 | 32.7 | 1.5 |
| BS 4464 - M24 | 25.3 | 24.4 | 5 ±0.2 | 35.7 | 1.65 |
| BS 4464 - M27 | 28.5 | 27.5 | 5 ±0.2 | 38.9 | 1.65 |
| BS 4464 - M30 | 31.5 | 30.5 | 6 ±0.2 | 43.9 | 2 |
| BS 4464 - M33 | 34.6 | 33.5 | 6 ±0.2 | 47 | 2 |
| BS 4464 - M36 | 37.6 | 36.5 | 7 ±0.25 | 52.1 | 2.3 |
| BS 4464 - M39 | 40.8 | 39.6 | 7 ±0.25 | 55.3 | 2.3 |
| BS 4464 - M42 | 43.8 | 42.6 | 8 ±0.25 | 60.3 | 2.65 |
| BS 4464 - M45 | 46.8 | 45.6 | 8 ±0.25 | 63.3 | 2.65 |
| BS 4464 - M48 | 50 | 48.8 | 8 ±0.25 | 66.5 | 2.65 |
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