JIS B 1256-1978 Square Washers


Unit: mm
Nominal Diameter
d
Φ6 Φ8 Φ10 Φ12 (Φ14) Φ16 (Φ18) Φ20 (Φ22) Φ24
d min=nominal size
max
s max=nominal size(Small square washer)
min(Small square washer)
max=nominal size(Large square washer)
min(Large square washer)
h Nominal Size(Small square washer)
max(Small square washer)
min(Small square washer)
Nominal Size(Large square washer)
max(Large square washer)
min(Large square washer)
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 max=nominal size(Small square washer)
min(Small square washer)
max=nominal size(Large square washer)
min(Large square washer)
h Nominal Size(Small square washer)
max(Small square washer)
min(Small square washer)
Nominal Size(Large square washer)
max(Large square washer)
min(Large square washer)
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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GB 853-1988
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DIN 434-1990
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DIN 436-1990
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12 方斜垫圈 (钢制) [Type B] [ASME/ANSI]
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14 方斜垫圈(U型) [UNI]
UNI 6598-2002
Channel Clamping Plates For UNP Section (Inclination 8%)
15 米制锥形方垫片 [BS]
BS 4395-1-1969
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16 粗制四方垫圈 Table 11 [BS]
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17 方斜垫圈 Table 12 [BS]
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18 工字钢用方斜垫圈 [ASTM]
ASTM F 436-2010
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19 方斜垫圈和剪切方斜垫圈 [ASTM]
ASTM F 436-2011
Hardened Beveled Washers
20 方垫圈 [CNS]
CNS 155-1994
Square Washers
21 带双槽槽钢用方斜垫圈 [CNS]
CNS 156-1994
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22 高强度结构槽钢用方斜垫圈 [CNS]
CNS 4647-1983
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23 带单槽工字钢用方斜垫圈 [CNS]
CNS 157-1994
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24 钢结构高强度螺栓连接—单槽方斜垫圈 [CNS]
CNS 4646-1983
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