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Unit:mm

Small Plain Washers - Product Grade A - [Table 3-4]

JIS B 1256 (SA) - 2008

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日标JIS B1256 (SA) - 2008 JIS1256 1256JIS Small Plain Washers - Product Grade A - [Table 3-4]
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Nominal Diameter
d
Φ1.6 Φ2 Φ2.5 Φ3 (Φ3.5) Φ4 Φ5 Φ6 Φ8 Φ10 Φ12
d min=nominal size
max
dc max=nominal size
min
h Nominal Size
max
min
1.7 2.2 2.7 3.2 3.7 4.3 5.3 6.4 8.4 10.5 13
1.84 2.34 2.84 3.38 3.88 4.48 5.48 6.62 8.62 10.77 13.27
3.5 4.5 5 6 7 8 9 11 15 18 20
3.2 4.2 4.7 5.7 6.64 7.64 8.64 10.57 14.57 17.57 19.48
0.3 0.3 0.5 0.5 0.5 0.5 1 1.6 1.6 1.6 2
0.35 0.35 0.55 0.55 0.55 0.55 1.1 1.8 1.8 1.8 2.2
0.25 0.25 0.45 0.45 0.45 0.45 0.9 1.4 1.4 1.4 1.8
Nominal Diameter
d
(Φ14) Φ16 (Φ18) Φ20 (Φ22) Φ24 (Φ27) Φ30 (Φ33) Φ36
d min=nominal size
max
dc max=nominal size
min
h Nominal Size
max
min
15 17 19 21 23 25 28 31 34 37
15.27 17.27 19.33 21.33 23.33 25.33 28.33 31.39 34.62 37.62
24 28 30 34 37 39 44 50 56 60
23.48 27.48 29.48 33.38 36.38 38.38 43.38 49.38 54.8 58.8
2.5 2.5 3 3 3 4 4 4 5 5
2.7 2.7 3.3 3.3 3.3 4.3 4.3 4.3 5.6 5.6
2.3 2.3 2.7 2.7 2.7 3.7 3.7 3.7 4.4 4.4

Alternative history

JIS B 1256S - 1978 JIS B 1256SA - 2008
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Similar Standards

1 Plain washers for screw and washer assemblies-Small series-Product grade A [ISO]
ISO 10673 (S) - 1998 		Plain washers for screw and washer assemblies-Small series-Product grade A
2 Plain Washers-Small Series—Product Grade A [ISO]
ISO 7092 - 2000 		Plain Washers-Small Series—Product Grade A
3 Plain Washers - Small Series, Product Grade A, 200HV and 300HV [DIN EN ISO]
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4 Plain Washers - Small Series - Product Grade A [GB]
GB /T 848 - 2002 		Plain Washers - Small Series - Product Grade A
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NF E 25-529 - 2000 		Plain Washers - Small Series - Product Grade A
6 Small bright chamfered washers for use with UNC, UNF, B.S.W. and B.S.F [Table 3] [BS]
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GB /T 848 - 1985 		Grade A small washers
8 Small Plain Washers [JIS]
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10 Small Light Gauge Black Washers [Table 9] [BS]
BS 3410 (-9) - 1961 		Small Light Gauge Black Washers [Table 9]
11 Plain Washers - Z Style(Small) [NF]
NF E 25-513 		Plain Washers - Z Style(Small)
12 Plain washers for metric bolts, screws and nuts for general purposes - Small, Product grade A [AS]
AS 1237.1 - 2002 		Plain washers for metric bolts, screws and nuts for general purposes - Small, Product grade A
13 Diminished Washers Of Accuracy Classes A And C [GOST]
GOST 10450 - 1978 		Diminished Washers Of Accuracy Classes A And C