PETROCHEMICAL
HEAVY HEX BOLTS / SETSCREWS
Heavy Hex Bolts and Setscrews have a larger head than standard Hex Head Bolts and are available off the shelf in the materials listed below. These are available in Imperial and Metric threads and can be coated or plated to suit customer requirements as requested. Other grades of material are manufactured to order. For a full list of materials available please see our materials section.
| GRADE | MATERIAL DESCRIPTION |
|---|---|
| A193 B7 | Chromium-Molybdenum, Alloy Steel, AISI 4140 |
| A193 B8M | Type 316 Stainless Steel, Carbide Solution Treated |
| A320 L7 | Chromium-Molybdenum, Alloy Steel, AISI 4140, Low Temperature Service |
GRADE
A193 B7
Material Description
Chromium-Molybdenum, Alloy Steel, AISI 4140
A193 B8M
Material Description
Type 316 Stainless Steel, Carbide Solution Treated
A320 L7
Material Description
Chromium-Molybdenum, Alloy Steel, AISI 4140, Low Temperature Service
DIMENSIONS
ASME B18.2.1
| DIAMETER | A/F (F) | A/C (C) | HEIGHT (H) | THREAD (T) |
|---|---|---|---|---|
| M10 | 17 | 16 | 8 | 1.5 |
| M12 | 19 | 18 | 10 | 1.75 |
DIAMETER
M10
A/F (F)17
A/C (C)16
Height (H)8
Thread (T)1.5
M12
A/F (F)19
A/C (C)18
Height (H)10
Thread (T)1.75
| DIA (D) | A/F (F) | A/C (C) | HEIGHT (H) | THREAD (T) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| BASIC | MAX | MIN | MAX | MIN | BASIC | MAX | MIN | T ≤ 6" | T > 6" | |
| 1/2 | 7/8 | 0.875 | 0.850 | 1.010 | 0.969 | 11/32 | 0.364 | 0.302 | 1.25 | 1.50 |
| 5/8 | 1 1/16 | 1.062 | 1.031 | 1.227 | 1.175 | 27/64 | 0.444 | 0.378 | 1.50 | 1.75 |
| 3/4 | 1 1/4 | 1.250 | 1.212 | 1.443 | 1.383 | 1/2 | 0.524 | 0.455 | 1.75 | 2.00 |
| 7/8 | 1 7/16 | 1.438 | 1.394 | 1.660 | 1.589 | 37/64 | 0.604 | 0.531 | 2.00 | 2.25 |
| 1 | 1 5/8 | 1.625 | 1.575 | 1.876 | 1.796 | 43/64 | 0.700 | 0.591 | 2.25 | 2.50 |
| 1 1/8 | 1 13/16 | 1.812 | 1.756 | 2.093 | 2.002 | 3/4 | 0.780 | 0.658 | 2.50 | 2.75 |
| 1 1/4 | 2 | 2.000 | 1.938 | 2.309 | 2.209 | 27/32 | 0.876 | 0.749 | 2.75 | 3.00 |
| 1 3/8 | 2 3/16 | 2.188 | 2.119 | 2.526 | 2.416 | 29/32 | 0.940 | 0.810 | 3.00 | 3.25 |
| 1 1/2 | 2 3/8 | 2.375 | 2.300 | 2.742 | 2.622 | 1 | 1.036 | 0.902 | 3.25 | 3.50 |
| 1 5/8 | 2 9/16 | 2.562 | 2.481 | 2.959 | 2.829 | 1 3/32 | 1.116 | 0.978 | 3.50 | 3.75 |
| 1 3/4 | 2 3/4 | 2.750 | 2.662 | 3.175 | 3.035 | 1 5/32 | 1.196 | 1.054 | 3.75 | 4.00 |
| 1 7/8 | 2 15/16 | 2.938 | 2.844 | 3.392 | 3.242 | 1 1/4 | 1.276 | 1.130 | 4.00 | 4.25 |
| 2 | 3 1/8 | 3.125 | 3.025 | 3.608 | 3.449 | 1 11/32 | 1.388 | 1.175 | 4.25 | 4.50 |
| 2 1/4 | 3 1/2 | 3.500 | 3.388 | 4.041 | 3.862 | 1 1/2 | 1.548 | 1.327 | 4.75 | 5.00 |
| 2 1/2 | 3 7/8 | 3.875 | 3.750 | 4.474 | 4.275 | 1 21/32 | 1.708 | 1.479 | 5.25 | 5.50 |
| 2 3/4 | 4 1/4 | 4.250 | 4.112 | 4.907 | 4.688 | 1 13/16 | 1.869 | 1.632 | 5.75 | 6.00 |
| 3 | 4 5/8 | 4.625 | 4.475 | 5.340 | 5.102 | 2 | 2.060 | 1.815 | 6.25 | 6.50 |
DIA
1/2
A/F Basic7/8
A/F Max0.875
A/F Min0.850
A/C Max1.010
A/C Min0.969
Height Basic11/32
Height Max0.364
Height Min0.302
Thread ≤ 6"1.25
Thread > 6"1.50
5/8
A/F Basic1 1/16
A/F Max1.062
A/F Min1.031
A/C Max1.227
A/C Min1.175
Height Basic27/64
Height Max0.444
Height Min0.378
Thread ≤ 6"1.50
Thread > 6"1.75
3/4
A/F Basic1 1/4
A/F Max1.250
A/F Min1.212
A/C Max1.443
A/C Min1.383
Height Basic1/2
Height Max0.524
Height Min0.455
Thread ≤ 6"1.75
Thread > 6"2.00
7/8
A/F Basic1 7/16
A/F Max1.438
A/F Min1.394
A/C Max1.660
A/C Min1.589
Height Basic37/64
Height Max0.604
Height Min0.531
Thread ≤ 6"2.00
Thread > 6"2.25
1
A/F Basic1 5/8
A/F Max1.625
A/F Min1.575
A/C Max1.876
A/C Min1.796
Height Basic43/64
Height Max0.700
Height Min0.591
Thread ≤ 6"2.25
Thread > 6"2.50
1 1/8
A/F Basic1 13/16
A/F Max1.812
A/F Min1.756
A/C Max2.093
A/C Min2.002
Height Basic3/4
Height Max0.780
Height Min0.658
Thread ≤ 6"2.50
Thread > 6"2.75
1 1/4
A/F Basic2
A/F Max2.000
A/F Min1.938
A/C Max2.309
A/C Min2.209
Height Basic27/32
Height Max0.876
Height Min0.749
Thread ≤ 6"2.75
Thread > 6"3.00
1 3/8
A/F Basic2 3/16
A/F Max2.188
A/F Min2.119
A/C Max2.526
A/C Min2.416
Height Basic29/32
Height Max0.940
Height Min0.810
Thread ≤ 6"3.00
Thread > 6"3.25
1 1/2
A/F Basic2 3/8
A/F Max2.375
A/F Min2.300
A/C Max2.742
A/C Min2.622
Height Basic1
Height Max1.036
Height Min0.902
Thread ≤ 6"3.25
Thread > 6"3.50
1 5/8
A/F Basic2 9/16
A/F Max2.562
A/F Min2.481
A/C Max2.959
A/C Min2.829
Height Basic1 3/32
Height Max1.116
Height Min0.978
Thread ≤ 6"3.50
Thread > 6"3.75
1 3/4
A/F Basic2 3/4
A/F Max2.750
A/F Min2.662
A/C Max3.175
A/C Min3.035
Height Basic1 5/32
Height Max1.196
Height Min1.054
Thread ≤ 6"3.75
Thread > 6"4.00
1 7/8
A/F Basic2 15/16
A/F Max2.938
A/F Min2.844
A/C Max3.392
A/C Min3.242
Height Basic1 1/4
Height Max1.276
Height Min1.130
Thread ≤ 6"4.00
Thread > 6"4.25
2
A/F Basic3 1/8
A/F Max3.125
A/F Min3.025
A/C Max3.608
A/C Min3.449
Height Basic1 11/32
Height Max1.388
Height Min1.175
Thread ≤ 6"4.25
Thread > 6"4.50
2 1/4
A/F Basic3 1/2
A/F Max3.500
A/F Min3.388
A/C Max4.041
A/C Min3.862
Height Basic1 1/2
Height Max1.548
Height Min1.327
Thread ≤ 6"4.75
Thread > 6"5.00
2 1/2
A/F Basic3 7/8
A/F Max3.875
A/F Min3.750
A/C Max4.474
A/C Min4.275
Height Basic1 21/32
Height Max1.708
Height Min1.479
Thread ≤ 6"5.25
Thread > 6"5.50
2 3/4
A/F Basic4 1/4
A/F Max4.250
A/F Min4.112
A/C Max4.907
A/C Min4.688
Height Basic1 13/16
Height Max1.869
Height Min1.632
Thread ≤ 6"5.75
Thread > 6"6.00
3
A/F Basic4 5/8
A/F Max4.625
A/F Min4.475
A/C Max5.340
A/C Min5.102
Height Basic2
Height Max2.060
Height Min1.815
Thread ≤ 6"6.25
Thread > 6"6.50
Dimensions in accordance with ASME B18.2.1
All dimensions are in inches
Thread lengths apply to bolts only. Setsrews are fully threaded