Hex Bolt Dimensions
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||||||||
Basic Product Diameter
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Full-Size Body Diameter
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Width Across Flats
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Width Across Corners
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Head Height
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Thread Length
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Thread Length
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||
Max
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Min
|
Max
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Min
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Up to 6in
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Over 6 in
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|||
1/4
|
.26
|
.237
|
7/16
|
.505
|
0.484
|
11/64
|
0.75
|
1.00
|
5/16
|
.324
|
.298
|
1/2
|
.577
|
0.552
|
7/32
|
0.88
|
1.13
|
3/8
|
.388
|
.360
|
9/16
|
.650
|
0.62
|
1/4
|
1.00
|
1.25
|
7/16
|
.452
|
.421
|
5/8
|
.722
|
0.687
|
19/64
|
1.13
|
1.38
|
1/2
|
.515
|
.482
|
3/4
|
.866
|
0.826
|
11/32
|
1.25
|
1.50
|
5/8
|
.642
|
.605
|
15/16
|
1.083
|
1.033
|
27/64
|
1.50
|
1.75
|
3/4
|
.768
|
.729
|
1-1/8
|
1.299
|
1.24
|
1/2
|
1.75
|
2.00
|
7/8
|
.895
|
.852
|
1-5/16
|
1.516
|
1.447
|
37/64
|
2.00
|
2.25
|
1
|
1.022
|
.976
|
1-1/2
|
1.732
|
1.653
|
43/64
|
2.25
|
2.50
|
1-1/8
|
1.149
|
1.098
|
1-11/16
|
1.949
|
1.859
|
3/4
|
2.50
|
2.75
|
1-1/4
|
1.277
|
1.223
|
1-7/8
|
2.165
|
2.066
|
27/32
|
2.75
|
3.00
|
1-3/8
|
1.404
|
1.345
|
2-1/16
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2.382
|
2.273
|
29/32
|
3.00
|
3.25
|
1-1/2
|
1.531
|
1.47
|
2-1/4
|
2.598
|
2.48
|
1
|
3.25
|
3.50
|
1-3/4
|
1.785
|
1.716
|
2-5/8
|
3.031
|
2.893
|
1-5/32
|
3.75
|
4.00
|
2
|
2.039
|
1.964
|
3
|
3.464
|
3.306
|
1-11/32
|
4.25
|
4.50
|
2-1/4
|
2.305
|
2.214
|
3-3/8
|
3.897
|
3.719
|
1-1/2
|
4.75
|
5.00
|
2-1/2
|
2.559
|
2.461
|
3-3/4
|
4.33
|
4.133
|
1-21/32
|
5.25
|
5.5
|
2-3/4
|
2.827
|
2.711
|
4-1/8
|
4.763
|
4.546
|
1-13/16
|
5.75
|
6.00
|
3
|
3.081
|
2.961
|
4-1/2
|
5.196
|
4.959
|
2
|
6.25
|
6.50
|
3-1/4
|
3.335
|
3.21
|
4-7/8
|
5.629
|
5.372
|
2-3/16
|
6.75
|
7.00
|
3-1/2
|
3.589
|
3.461
|
5-1/4
|
6.062
|
5.786
|
2-5/16
|
7.25
|
7.50
|
3-3/4
|
3.858
|
3.726
|
5-5/8
|
6.495
|
6.198
|
2-1/2
|
7.75
|
8.00
|
4
|
4.111
|
3.975
|
6
|
6.928
|
6.612
|
2-11/16
|
8.25
|
8.50
|