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Square Washers

JIS B 1256 (SQ) - 1978

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日标JIS B1256 (SQ) - 1978 JIS1256 1256JIS Square Washers

 *Models with different eras.

Nominal Diameter
d
Φ6 Φ8 Φ10 Φ12 (Φ14) Φ16 (Φ18) Φ20 (Φ22) Φ24
d min=nominal size
max
s Small square washer max=nominal size
min
Large square washer max=nominal size
min
h Small square washer Nominal Size
max
min
Large square washer Nominal Size
max
min
6.6 9 11 14 16 18 20 22 24 26
7.2 9.6 11.7 14.7 16.7 18.7 20.8 22.8 24.8 26.8
17 23 28 35 40 45 52 56 64 68
15.9 21.7 26.7 33.4 38.4 43.4 50.1 54.1 62.1 66.1
20 26 32 40 44 52 55 62 68 72
18.7 24.7 30.4 38.4 42.4 50.1 53.1 60.1 66.1 70.1
1.2 1.6 1.6 2.3 3.2 3.2 4.5 4.5 4.5 6
1.4 1.8 1.8 2.6 3.6 3.6 5 5 5 6.7
1 1.4 1.4 2 2.8 2.8 4 4 4 5.3
2.3 2.3 2.3 3.2 3.2 4.5 4.5 6 6 6
2.6 2.6 2.6 3.6 3.6 5 5 6.7 6.7 6.7
2 2 2 2.8 2.8 4 4 5.3 5.3 5.3
Nominal Diameter
d
(Φ27) Φ30 (Φ33) Φ36 (Φ39) Φ42 (Φ45) Φ48 (Φ52)
d min=nominal size
max
s Small square washer max=nominal size
min
Large square washer max=nominal size
min
h Small square washer Nominal Size
max
min
Large square washer Nominal Size
max
min
30 33 36 39 42 45 48 52 56
30.8 34 37 40 43 46.5 49.5 54 58
73
71.1
80 90 100 110 115 120 130 140 150
78.1 87.8 97.8 107.8 112.8 117.8 127.5 137.5 147.5
6
6.7
5.3
6 6 8 8 8 9 9 12 12
6.7 6.7 8.7 8.7 8.7 10 10 13 13
5.3 5.3 7.3 7.3 7.3 8 8 11 11

Similar Standards

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