ASME B18.2.1 Hex Bolts and Heavy Hex Bolts

Wenzhou Nanlong Import&Export Trading CO.,LTD.(China)|ASME B18.2.1 Hex Bolts and Heavy Hex Bolts
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ASME B18.2.1 Hex Bolts and Heavy Hex Bolts

 


Fastener>> IFI  Fastener >> ASME B18.2.1 Hex Bolts and Heavy Hex Bolts

 

ASME B18.2.1 Hex Bolts

ASME B18.2.1 Hex Bolts and Heavy Hex Bolts


Dimensions of ASME B18.2.1 Hex Bolts
Thread Length for
Body Bolt Lengths, LT
See Para. 3.7)
Nominal Size
or Basic Product Diameter
Full-Size Body Diameter,E
(See Paras. 3.4 and 3.5)
Width Across Flats, F (See Para. 2.1.2)
Width Across Corners, G
Head Height, H
Radius of Fillet, R
6 in. and Shorter
Over 6 in.
Max.
Min.
Basic
Max.
Min.
Max.
Min.
Basic
Max.
Min.
Max.
Min.
Nom.
Nom.
1/4
0.25
0.26
0.237
7/16
0.438
0.425
0.505
0.484
11/64
0.188
0.15
0.03
0.01
0.75
1
5/16
0.3125
0.324
0.298
1/2
0.5
0.484
0.577
0.552
7/32
0.235
0.195
0.03
0.01
0.875
1.125
3/8
0.375
0.388
0.36
9/16
0.562
0.544
0.65
0.62
1/4
0.268
0.226
0.03
0.01
1
1.25
7/16
0.4375
0.452
0.421
5/8
0.625
0.603
0.722
0.687
19/64
0.316
0.272
0.03
0.01
1.125
1.375
1/2
0.5
0.515
0.482
3/4
0.75
0.725
0.866
0.826
11/32
0.364
0.302
0.03
0.01
1.25
1.5
5/8
0.625
0.642
0.605
15/16
0.938
0.906
1.083
1.033
27/64
0.444
0.378
0.06
0.02
1.5
1.75
3/4
0.75
0.768
0.729
1 1/8
1.125
1.088
1.299
1.24
1/2
0.524
0.455
0.06
0.02
1.75
2
7/8
0.875
0.895
0.852
1 5/16
1.312
1.269
1.516
1.447
37/64
0.604
0.531
0.06
0.02
2
2.25
1
1
1.022
0.976
1 1/?2
1.5
1.45
1.732
1.653
43/64
0.7
0.591
0.09
0.03
2.25
2.5
1 1/8
1.125
1.149
1.098
1 11/16
1.688
1.631
1.949
1.859
3/4
0.78
0.658
0.09
0.03
2.5
2.75
1 1/4
1.25
1.277
1.223
1 7/8
1.875
1.812
2.165
2.066
27/32
0.876
0.749
0.09
0.03
2.75
3
1 3/8
1.375
1.404
1.345
2 1/16
2.062
1.994
2.382
2.273
29/32
0.94
0.81
0.09
0.03
3
3.25
1 1/2
1.5
1.531
1.47
2 1/4
2.25
2.175
2.598
2.48
1
1.036
0.902
0.09
0.03
3.25
3.5
1 5/8
1.625
1.658
1.591
2 7/16
2.438
2.356
2.815
2.616
1 3/32
1.116
0.978
0.09
0.03
3.5
3.75
1 3/4
1.75
1.785
1.716
2 5/8
2.625
2.538
3.031
2.893
1 5/32
1.196
1.054
0.12
0.04
3.75
4
1 7/8
1.875
1.912
1.839
2 13/16
2.812
2.719
3.248
3.099
1 1/4
1.276
1.13
0.12
0.04
4
4.25
2
2
2.039
1.964
3
3
2.9
3.464
3.306
1 11/32
1.388
1.175
0.12
0.04
4.25
4.5
2 1/4
2.25
2.305
2.214
3 3/8
3.375
3.262
3.897
3.719
1 1/2
1.548
1.327
0.19
0.06
4.75
5
2 1/2
2.5
2.559
2.461
3 3/4
3.75
3.625
4.33
4.133
1 21/32
1.708
1.479
0.19
0.06
5.25
5.5
2 3/4
2.75
2.827
2.711
4 1/8
4.125
3.988
4.763
4.546
1 13/16
1.869
1.632
0.19
0.06
5.75
6
3
3
3.081
2.961
4 1/2
4.5
4.35
5.196
4.959
2
2.06
1.815
0.19
0.06
6.25
6.5
3 1/4
3.25
3.335
3.21
4 7/8
4.875
4.712
5.629
5.372
2 3/16
2.251
1.936
0.19
0.06
6.75
7
3 1/?2
3.5
3.589
3.461
5 1/4
5.25
5.075
6.062
5.786
2 5/16
2.38
2.057
0.19
0.06
7.25
7.5
3 3/4
3.75
3.858
3.726
5 5/8
5.625
5.437
6.495
6.198
2 1/2
2.572
2.241
0.19
0.06
7.75
8
4
4
4.111
3.975
6
6
5.8
6.928
6.612
2 11/16
2.764
2.424
0.19
0.06
8.25
8.5

 



Dimensions of ASME B18.2.1 Hex Heavy Bolts
Thread Length for
Body Bolt Lengths, LT
See Para. 3.7)
Nominal Size
or Basic Product Diameter
Full-Size Body Diameter,E
(See Paras. 3.4 and 3.5)
Width Across Flats, F (See Para. 2.1.2)
Width Across Corners, G
Head Height, H
Radius of Fillet, R
6 in. and Shorter
Over 6 in.
Max.
Min.
Basic
Max.
Min.
Max.
Min.
Basic
Max.
Min.
Max.
Min.
Nom.
Nom.
3/8
0.375
0.388
0.36
11/16
0.688
0.669
0.794
0.763
1/4
0.268
0.226
0.03
0.01
1
1.25
1/2
0.5
0.515
0.482
7/8
0.875
0.85
1.01
0.969
11/32
0.364
0.302
0.03
0.01
1.25
1.5
5/8
0.625
0.642
0.605
11/16
1.062
1.031
1.227
1.175
27/64
0.444
0.378
0.06
0.02
1.5
1.75
3/4
0.75
0.768
0.729
1 1/4
1.25
1.212
1.443
1.383
1/2
0.524
0.455
0.06
0.02
1.75
2
7/8
0.875
0.895
0.852
1 7/16
1.438
1.394
1.66
1.589
37/64
0.604
0.531
0.06
0.02
2
2.25
1
1
1.022
0.976
1 5/8
1.625
1.575
1.876
1.796
43/64
0.7
0.591
0.09
0.03
2.25
2.5
1 1/8
1.125
1.149
1.098
1 13/16
1.812
1.756
2.093
2.002
3/4
0.78
0.658
0.09
0.03
2.5
2.75
1 1/4
1.25
1.277
1.223
2
2
1.938
2.309
2.209
27/32
0.876
0.749
0.09
0.03
2.75
3
1 3/8
1.375
1.404
1.345
2 3/16
2.188
2.119
2.526
2.416
29/32
0.94
0.81
0.09
0.03
3
3.25
1 1/2
1.5
1.531
1.47
2 3/8
2.375
2.3
2.742
2.622
1
1.036
0.902
0.09
0.03
3.25
3.5
15/8
1.625
1.658
1.591
2 9/16
2.562
2.481
2.959
2.829
1 3/32
1.116
0.978
0.09
0.03
3.5
3.75
1 3/4
1.75
1.785
1.716
2 3/4
2.75
2.662
3.175
3.035
1 5/32
1.196
1.054
0.12
0.04
3.75
4
1 7/8
1.875
1.912
1.839
2 15/16
2.938
2.844
3.392
3.242
1 1/4
1.276
1.13
0.12
0.04
4
4.25
2
2
2.039
1.964
3 1/8
3.125
3.025
3.608
3.449
1 11/32
1.388
1.175
0.12
0.04
4.25
4.5
2 1/4
2.25
2.305
2.214
3 1/2
3.5
3.388
4.041
3.862
1 1/2
1.548
1.327
0.19
0.06
4.75
5
2 1/2
2.5
2.559
2.461
3 7/8
3.875
3.75
4.474
4.275
1 21/32
1.708
1.479
0.19
0.06
5.25
5.5
2 3/4
2.75
2.827
2.711
4 1/4
4.25
4.112
4.907
4.688
1 13/16
1.869
1.632
0.19
0.06
5.75
6
3
3
3.081
2.961
4 5/8
4.625
4.475
5.34
5.102
2
2.06
1.815
0.19
0.06
6.25
6.5

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This Website describes DIN standard Fastener in China.Wenzhou Nanlong Import & Export Trading CO.,LTD.(China)-There are ASME B18.2.1 Hex Bolts and Heavy Hex Bolts.And the the material are stainless steel (TP304-18-8,316,316L,310S.309S..317L.347H,904L...),carbon steel (C1018 C1022),aluminium,brass, titanium & titanium alloy(Ti G1,Gr2,G4,Gr5,G7) and so no.

ASME B18.2.1 Hex Bolts and Heavy Hex Bolts