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BS 4464B Metric Spring Washers Type B

BS 4464B Metric Spring Washers Type B

Dimensions of Metric Spring Washers Type B & BP (Single Coil, Rectangle Section)

Nom Size ø D1 ø D2 T Radius, R L
Max Min Max Max Min Max Ref
M1.65 1.9 1.7 3.5 0.5 0.3 0.15 -
M2 2.3 2.1 4.3 0.6 0.4 0.15 -
(M2.2) 2.5 2.3 4.7 0.7 0.5 0.2 -
M2.5 2.8 2.6 5.0 0.7 0.5 0.2 -
M3 3.3 3.1 6.1 0.9 0.7 0.25 -
(M3.5) 3.8 3.6 6.6 0.9 0.7 0.25 0.15
M4 4.35 4.1 7.55 1.0 0.8 0.3 0.15
M5 5.35 5.1 9.15 1.3 1.1 0.4 0.15
M6 6.4 6.1 11.7 1.7 1.5 0.5 0.2
M8 8.55 8.2 14.85 2.1 1.9 0.65 0.3
M10 10.6 10.2 18.0 2.35 2.05 0.7 0.3
M12 12.6 12.2 21.0 2.65 2.35 0.8 0.4
(M14) 14.7 14.2 24.1 3.15 2.85 1.0 0.4
M16 16.9 16.3 27.3 3.7 3.3 1.15 0.4
(M18) 19.0 18.3 29.4 3.7 3.3 1.15 0.4
M20 21.1 20.3 33.5 4.2 3.8 1.3 0.4
(M22) 23.3 22.4 35.7 4.2 3.8 1.3 0.4
M24 25.3 24.4 39.8 5.2 4.8 1.65 0.5
(M27) 28.5 27.5 43.0 5.2 4.8 1.65 0.5
M30 31.5 30.5 48.0 6.25 5.75 2.0 0.8
(M33) 34.6 33.5 55.1 6.25 5.75 2.0 0.8
M36 37.6 36.5 58.1 6.25 5.75 2.0 0.8
(M39) 40.8 39.6 61.3 6.25 5.75 2.0 0.8
M42 43.8 42.6 68.3 7.25 6.75 2.3 0.8
(M45) 46.8 45.6 71.3 7.25 6.75 2.3 0.8
M48 50.0 48.8 74.5 7.25 6.75 2.3 0.8
(M52) 54.1 52.8 82.6 8.25 7.75 2.65 1.0
M56 58.1 56.8 86.6 8.25 7.75 2.65 1.0
(M60) 62.3 60.9 90.8 8.25 7.75 2.65 1.0
M64 66.3 64.9 93.8 8.25 7.75 2.65 1.0
(M68) 70.5 69.0 99.0 8.25 7.75 2.65 1.0

Note : Sizes shown in brackets are non-preferred