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Specification
1/4
5/16
3/8
7/16
1/2
5/8
3/4
7/8
1
Unit:inch
Black Square Nuts
BS 325 - 1947
Display drawing:
3D DRAWING
Tolerance Calculator
Weight Calculator
Error Correction
Screw Thread
d
1/4
5/16
3/8
7/16
1/2
5/8
3/4
7/8
1
PP
BSW
k
max
min
s
max
min
20
18
16
14
12
11
10
9
8
0.22
0.27
0.33
0.39
0.46
0.6
0.72
0.81
0.93
0.2
0.25
0.31
0.37
0.43
0.56
0.68
0.75
0.87
0.445
0.525
0.6
0.71
0.82
1.01
1.2
1.3
1.48
0.435
0.515
0.585
0.695
0.8
0.985
1.175
1.27
1.45
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Similar Standards
1
[ASME/ANSI]
ASME/ANSI B 18.2.2 - 2010
Square Machine Screw Nuts
2
[ASME]
ASME B 18.2.2 - 2022
Square Nuts [Table 3] (SAE J995 / ASTM F594 / F467)
3
[DIN]
DIN 557 - 1994
Square Nuts-Product Grade C
4
[ASME]
ASME B 18.2.2 - 2015
Heavy Square Nuts [Table 8] (SAE J995 / ASTM F594 / F467)
5
[ASME]
ASME B 18.2.2 - 2015
Square Machine Screw Nuts [Table1-1] (SAE J995 / ASTM F594 / F467)
6
[ASME]
ASME B 18.2.2 - 2022
Square Machine Screw Nuts [Table1] (SAE J995 / ASTM F594 / F467)
7
[ASME]
ASME B 18.2.2 - 2015
Square Nuts [Table 2] (SAE J995 / ASTM F594 / F467)
8
[DIN]
DIN 798 - 1972
Special Foundation Nuts for Special Foundation Bolts According to DIN 797
9
[ASME]
ASME B 18.10 - 2006 (R2016)
Track Bolt Nuts (Square nuts) [Table 3] (A563)
10
[ASME]
ASME B 18.2.2 - 2022
Heavy Square Nuts [Table 9] (SAE J995 / ASTM F594 / F467)
11
[DIN]
DIN 557 - 1985
Square Nuts-Product Grade C
12
[DIN]
DIN 798 - 2009
Special Foundation Nuts
13
[DIN]
DIN 562 - 1987
Square Thin Nuts, Product Grade B
14
[DIN]
DIN 562 - 2013
Square Thin Nuts, Product Grade B
15
[ASME/ANSI]
ASME/ANSI B 18.2.2 - 2010
Square Nuts [Table 2]
16
[ASME/ANSI]
ASME/ANSI B 18.2.2 - 2010
Heavy Square Nuts [Table 8]
17
[NF]
NF E 25-403 - 1983
Square Nuts - Product Grades A and B
18
[UNI]
UNI 5597 - 1965
Square Nuts. ISO Metric Coarse Thread. Finish c. Dadi Quadri Normali. Filettatura Metrica ISO a Passo Grosso. Categoria C.
19
[GB]
GB 39 - 1988
Square Nuts - Product Grade C
20
[UNI]
UNI 6419 - 1969
Square Nuts for Manufacture of Railway and Tramway Rolling Stock - ISO Metric Coarse Thread - Finish C
21
[BS]
BS 1981 - 1991
Square Screw Nuts
22
[JIS]
JIS B 1163 - 1995
Square Nuts
23
[JIS]
JIS B 1163 - 2009
Square Nuts with Single Chamfer
24
[BS]
BS 916 - 1953
Square Nuts with B.S.Threads - Black [Table 3]
25
[GB]
GB /T 2153 - 1991
Rhombic Nut
26
[NF]
NF E 27-412 - 1973
Large Square Nuts
27
[BS]
BS 916 - 1953
Square Nuts with B.S.Threads - Faced One Side or Both Side - Black [Table 3]
28
[JIS]
JIS B 1163 - 2001
Square Nuts with Single Chamfer
29
[BS]
BS 4183 (T8) - 1967
Machine Screw Square Nuts, Pressed Type
30
[NF]
NF E 25-404 - 1983
Square Nuts - Product Grade C
31
[SAE]
SAE J 104 - 1969
Square Machine Screw Nuts
32
[CNS]
CNS 4067 - 1983
Square Nuts - Grade C
33
[CNS]
CNS 4377 - 1983
Square Thin Nuts
34
[CNS]
CNS 4378 - 1983
Special Anchor Nuts for Special Anchor Bolts
35
[SAE]
SAE J 104 - 1969
Heavy Square Nuts
36
[SAE]
SAE J 104 - 1969
Square Nuts
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