BS 4464 Rectangular Single Coil Section Spring Washers
| Nom. Size &Thread Dia., d | Inside Dia.,d 1 | Width,b | Thickness,s | Outside Dia., d2 Max | Radius, r Max | k Type BP Only | |
|---|---|---|---|---|---|---|---|
| Max | Min | ||||||
| BS 4464 - M1.6 | 1.9 | 1.7 | 0.7 ±0.1 | 0.4 ±0.1 | 3.5 | 0.15 | ... |
| BS 4464 - M2 | 2.3 | 2.1 | 0.9 ±0.1 | 0.5 ±0.1 | 4.3 | 0.15 | ... |
| BS 4464 - M2.2 | 2.5 | 2.3 | 1.0 ±0.1 | 0.6 ±0.1 | 4.7 | 0.2 | ... |
| BS 4464 - M2.5 | 2.8 | 2.6 | 1.0 ±0.1 | 0.6 ±0.1 | 5 | 0.2 | ... |
| BS 4464 - M3 | 3.3 | 3.1 | 1.3 ±0.1 | 0.8 ±0.1 | 6.1 | 0.25 | ... |
| BS 4464 - M3.5 | 3.8 | 3.6 | 1.3 ±0.1 | 0.8 ±0.1 | 6.6 | 0.25 | 0.15 |
| BS 4464 - M4 | 4.35 | 4.1 | 1.5 ±0.1 | 0.9 ±0.1 | 7.55 | 0.3 | 0.15 |
| BS 4464 - M5 | 5.35 | 5.1 | 1.8 ±0.1 | 1.2 ±0.1 | 9.15 | 0.4 | 0.15 |
| BS 4464 - M6 | 6.4 | 6.1 | 2.5 ±0.15 | 1.6 ±0.1 | 11.7 | 0.5 | 0.2 |
| BS 4464 - M8 | 8.55 | 8.2 | 3 ±0.15 | 2 ±0.1 | 14.85 | 0.65 | 0.3 |
| BS 4464 - M10 | 10.6 | 10.2 | 3.5 ±0.2 | 2.2 ±0.15 | 18 | 0.7 | 0.3 |
| BS 4464 - M12 | 12.6 | 12.2 | 4 ±0.2 | 2.5 ±0.15 | 21 | 0.8 | 0.4 |
| BS 4464 - M14 | 14.7 | 14.2 | 4.5 ±0.2 | 3 ±0.15 | 24.1 | 1 | 0.4 |
| BS 4464 - M16 | 16.9 | 16.3 | 5 ±0.2 | 3.5 ±0.2 | 27.3 | 1.15 | 0.4 |
| BS 4464 - M18 | 19 | 18.3 | 5 ±0.2 | 3.5 ±0.2 | 29.4 | 1.15 | 0.4 |
| BS 4464 - M20 | 21.1 | 20.3 | 6 ±0.2 | 4 ±0.2 | 33.5 | 1.3 | 0.4 |
| BS 4464 - M22 | 23.3 | 22.4 | 6 ±0.2 | 4 ±0.2 | 35.7 | 1.3 | 0.4 |
| BS 4464 - M24 | 25.3 | 24.4 | 7 ±0.25 | 5 ±0.2 | 39.8 | 1.65 | 0.5 |
| BS 4464 - M27 | 28.5 | 27.5 | 7 ±0.25 | 5 ±0.2 | 43 | 1.65 | 0.5 |
| BS 4464 - M30 | 31.5 | 30.5 | 8 ±0.25 | 6 ±0.25 | 48 | 2 | 0.8 |
| BS 4464 - M33 | 34.6 | 33.5 | 10 ±0.25 | 6 ±0.25 | 55.1 | 2 | 0.8 |
| BS 4464 - M36 | 37.6 | 36.5 | 10 ±0.25 | 6 ±0.25 | 58.1 | 2 | 0.8 |
| BS 4464 - M39 | 40.8 | 39.6 | 10 ±0.25 | 6 ±0.25 | 61.3 | 2 | 0.8 |
| BS 4464 - M42 | 43.8 | 42.6 | 12 ±0.25 | 7 ±0.25 | 68.3 | 2.3 | 0.8 |
| BS 4464 - M45 | 46.8 | 45.6 | 12 ±0.25 | 7 ±0.25 | 71.3 | 2.3 | 0.8 |
| BS 4464 - M48 | 50 | 48.8 | 12 ±0.25 | 7 ±0.25 | 74.5 | 2.3 | 0.8 |
| BS 4464 - M52 | 54.1 | 52.8 | 14 ±0.25 | 8 ±0.25 | 82.6 | 2.65 | 1 |
| BS 4464 - M56 | 58.1 | 56.8 | 14 ±0.25 | 8 ±0.25 | 86.6 | 2.65 | 1 |
| BS 4464 - M60 | 62.3 | 60.9 | 14 ±0.25 | 8 ±0.25 | 90.8 | 2.65 | 1 |
| BS 4464 - M64 | 66.3 | 64.9 | 14 ±0.25 | 8 ±0.25 | 93.8 | 2.65 | 1 |
| BS 4464 - M68 | 70.5 | 69 | 14 ±0.25 | 8 ±0.25 | 99 | 2.65 | 1 |
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