PETROCHEMICAL
Plating & Coatings
Fasteners
Hex Head Products
Socket Products
Foundation Bolting
Studding
Nuts
Washers
Brand Products
Gaskets
Spiral Wound Gaskets
Ring Type Joints
Soft Cut Gaskets
Insulation Kits
Pipe Supports
U-Bolts
Pipe Clamps
Eyebolts
Hemispherical Washers
Hex Connecting Nut
I-Rod / Nu-Bolts
HEX LOCK NUT (IMPERIAL)
ANSI B18.2.2 / BS1768
| DIA | A/F (Basic) | A/F (MAX) | A/F (MIN) | A/C (Max) | A/C (MIN) | T (BASIC) | T (Max) | T (MIN) |
|---|---|---|---|---|---|---|---|---|
| 1/4 | 7/16 | 0.438 | 0.428 | 0.505 | 0.488 | 5/32 | 0.164 | 0.150 |
| 5/16 | 1/2 | 0.500 | 0.489 | 0.577 | 0.557 | 3/16 | 0.195 | 0.180 |
| 3/8 | 9/16 | 0.562 | 0.551 | 0.650 | 0.628 | 7/32 | 0.227 | 0.210 |
| 7/16 | 11/16 | 0.688 | 0.675 | 0.794 | 0.768 | 1/4 | 0.260 | 0.240 |
| 1/2 | 3/4 | 0.750 | 0.736 | 0.866 | 0.840 | 5/16 | 0.323 | 0.302 |
| 9/16 | 7/8 | 0.875 | 0.861 | 1.010 | 0.982 | 5/16 | 0.324 | 0.301 |
| 5/8 | 1-5/16 | 0.938 | 0.922 | 1.083 | 1.051 | 3/8 | 0.387 | 0.363 |
| 3/4 | 1-1/8 | 1.125 | 1.088 | 1.299 | 1.240 | 27/64 | 0.446 | 0.398 |
| 7/8 | 1-5/16 | 1.312 | 1.269 | 1.516 | 1.447 | 31/64 | 0.510 | 0.458 |
| 1 | 1-1/2 | 1.500 | 1.450 | 1.732 | 1.653 | 35/64 | 0.575 | 0.519 |
| 1-1/8 | 1-11/16 | 1.688 | 1.631 | 1.949 | 1.859 | 39/64 | 0.639 | 0.579 |
| 1-1/4 | 1-7/8 | 1.875 | 1.812 | 2.165 | 2.066 | 23/32 | 0.751 | 0.687 |
| 1-3/8 | 2-1/16 | 2.062 | 1.994 | 2.382 | 2.273 | 25/32 | 0.815 | 0.747 |
| 1-1/2 | 2-1/4 | 2.250 | 2.175 | 2.598 | 2.480 | 27/32 | 0.880 | 0.808 |
| 1-5/8 | 2-7/16 | 2.438 | 2.356 | 2.815 | 2.686 | 29/32 | 0.945 | 0.869 |
| 1-3/4 | 2-5/8 | 2.625 | 2.558 | 3.031 | 2.893 | 31/32 | 1.009 | 0.929 |
| 2 | 3 | 3.000 | 2.900 | 3.464 | 3.306 | 1-3/32 | 1.138 | 1.050 |
| 2-1/4 | 3-3/8 | 3.375 | 3.236 | 3.897 | 3.719 | 1-7/32 | 1.267 | 1.171 |
| 2-1/2 | 3-3/4 | 3.750 | 3.625 | 4.330 | 4.133 | 1-11/32 | 1.396 | 1.292 |
| 2-3/4 | 4-1/8 | 4.125 | 3.988 | 4.763 | 4.546 | 1-15/32 | 1.525 | 1.413 |
| 3 | 4-1/2 | 4.500 | 4.350 | 5.196 | 4.959 | 1-19/32 | 1.654 | 1.534 |
DIA
1/4
A/F (Basic)7/16
A/F (Max)0.438
A/F (Min)0.428
A/C (Max)0.505
A/C (Min)0.488
T (Basic)5/32
T (Max)0.164
T (Min)0.150
5/16
A/F (Basic)1/2
A/F (Max)0.500
A/F (Min)0.489
A/C (Max)0.577
A/C (Min)0.557
T (Basic)3/16
T (Max)0.195
T (Min)0.180
3/8
A/F (Basic)9/16
A/F (Max)0.562
A/F (Min)0.551
A/C (Max)0.650
A/C (Min)0.628
T (Basic)7/32
T (Max)0.227
T (Min)0.210
7/16
A/F (Basic)11/16
A/F (Max)0.688
A/F (Min)0.675
A/C (Max)0.794
A/C (Min)0.768
T (Basic)1/4
T (Max)0.260
T (Min)0.240
1/2
A/F (Basic)3/4
A/F (Max)0.750
A/F (Min)0.736
A/C (Max)0.866
A/C (Min)0.840
T (Basic)5/16
T (Max)0.323
T (Min)0.302
9/16
A/F (Basic)7/8
A/F (Max)0.875
A/F (Min)0.861
A/C (Max)1.010
A/C (Min)0.982
T (Basic)5/16
T (Max)0.324
T (Min)0.301
5/8
A/F (Basic)15/16
A/F (Max)0.938
A/F (Min)0.922
A/C (Max)1.083
A/C (Min)1.051
T (Basic)3/8
T (Max)0.387
T (Min)0.363
3/4
A/F (Basic)1-1/8
A/F (Max)1.125
A/F (Min)1.088
A/C (Max)1.299
A/C (Min)1.240
T (Basic)27/64
T (Max)0.446
T (Min)0.398
7/8
A/F (Basic)1-5/16
A/F (Max)1.312
A/F (Min)1.269
A/C (Max)1.516
A/C (Min)1.447
T (Basic)31/64
T (Max)0.510
T (Min)0.458
1
A/F (Basic)1-1/2
A/F (Max)1.500
A/F (Min)1.450
A/C (Max)1.732
A/C (Min)1.653
T (Basic)35/64
T (Max)0.575
T (Min)0.519
1-1/8
A/F (Basic)1-11/16
A/F (Max)1.688
A/F (Min)1.631
A/C (Max)1.949
A/C (Min)1.859
T (Basic)39/64
T (Max)0.639
T (Min)0.579
1-1/4
A/F (Basic)1-7/8
A/F (Max)1.875
A/F (Min)1.812
A/C (Max)2.165
A/C (Min)2.066
T (Basic)23/32
T (Max)0.751
T (Min)0.687
1-3/8
A/F (Basic)2-1/16
A/F (Max)2.062
A/F (Min)1.994
A/C (Max)2.382
A/C (Min)2.273
T (Basic)25/32
T (Max)0.815
T (Min)0.747
1-1/2
A/F (Basic)2-1/4
A/F (Max)2.250
A/F (Min)2.175
A/C (Max)2.598
A/C (Min)2.480
T (Basic)27/32
T (Max)0.880
T (Min)0.808
1-5/8
A/F (Basic)2-7/16
A/F (Max)2.438
A/F (Min)2.356
A/C (Max)2.686
A/C (Min)2.580
T (Basic)29/32
T (Max)0.945
T (Min)0.869
1-3/4
A/F (Basic)2-5/8
A/F (Max)2.625
A/F (Min)2.558
A/C (Max)3.031
A/C (Min)2.893
T (Basic)31/32
T (Max)1.009
T (Min)0.929
2
A/F (Basic)3
A/F (Max)3.000
A/F (Min)2.900
A/C (Max)3.464
A/C (Min)3.306
T (Basic)1-3/32
T (Max)1.138
T (Min)1.050
2-1/4
A/F (Basic)3-3/8
A/F (Max)3.375
A/F (Min)3.236
A/C (Max)3.897
A/C (Min)3.719
T (Basic)1-7/32
T (Max)1.267
T (Min)1.171
2-1/2
A/F (Basic)3-3/4
A/F (Max)3.750
A/F (Min)3.625
A/C (Max)4.330
A/C (Min)4.133
T (Basic)1-11/32
T (Max)1.396
T (Min)1.292
2-3/4
A/F (Basic)4-1/8
A/F (Max)4.125
A/F (Min)3.988
A/C (Max)4.763
A/C (Min)4.546
T (Basic)1-15/32
T (Max)1.525
T (Min)1.413
3
A/F (Basic)4-1/2
A/F (Max)4.500
A/F (Min)4.350
A/C (Max)5.196
A/C (Min)4.959
T (Basic)1-19/32
T (Max)1.654
T (Min)1.534
Dimensions in Inches
Available in Mild Steel and A2 & A4 Stainless Steel
Other materials manufactured on request