
Suppliers of Hexagon nuts, inch series
This product is regulated by the following standards:
ASME B18.2.2 TABLE 4 ASME B18.2.2 TABLE 1-2 ASME B18.2.2 TABLE 1-1 ASME B18.2.2 TABLE 10 ASME B18.2.2 TABLE 3 ASME B18.2.2 TABLE 6 ASME B18.2.2 TABLE 9
Technical data
Hexagon nuts, inch series

This product is regulated by the following standards:
- ASME B18.2.2 TABLE 4
- ASME B18.2.2 TABLE 1-2
- ASME B18.2.2 TABLE 1-1
- ASME B18.2.2 TABLE 10
- ASME B18.2.2 TABLE 3
- ASME B18.2.2 TABLE 6
- ASME B18.2.2 TABLE 9
Standard ASME B18.2.2 TABLE 4
Hexagon nuts and Hexagon Jam nutsInformation restricted to registered users: Login | Register now for a 14 day free trial
Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 TABLE 4 Publication date : 2010 | |||||||||||
Nominal size or Bsic major dia. of the Thread | Nr. of threads x inch | G min | G max | F min | F max | H min | H max | H1 min | H1 max | ||
UNC | UNF | ||||||||||
1/4 | 20 | 28 | 0.488 | 0.505 | 0.428 | 0.438 | 0.212 | 0.226 | 0.150 | 0.163 | |
5/16 | 18 | 24 | 0.557 | 0.577 | 0.489 | 0.5 | 0.258 | 0.273 | 0.180 | 0.195 | |
3/8 | |||||||||||
7/16 | |||||||||||
1/2 | |||||||||||
9/16 | |||||||||||
5/8 | |||||||||||
3/4 | |||||||||||
7/8 | |||||||||||
1 | |||||||||||
1-1/8 | |||||||||||
1-1/4 | |||||||||||
1-3/8 | |||||||||||
1-1/2 | |||||||||||
1-5/8 | |||||||||||
1-3/4 | |||||||||||
1-7/8 | |||||||||||
2 | |||||||||||
2-1/4 | |||||||||||
2-1/2 | |||||||||||
2-3/4 | |||||||||||
3 | |||||||||||
3-1/4 | |||||||||||
3-1/2 | |||||||||||
3-374 | |||||||||||
4 |
Standard ASME B18.2.2 TABLE 1-2
Small pattern hex machine screw nutsInformation restricted to registered users: Login | Register now for a 14 day free trial
Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 Table 1-2 Publication date: 2010 | |||||||
d Thread size | G1 min | G1 max | F basic | H min | H max | ||
0 (0.060) | 0.134 | 0.140 | 0.125 | 0.043 | 0.050 | ||
1 (0.073) | 0.134 | 0.140 | 0.125 | 0.043 | 0.050 | ||
2 (0.086) | |||||||
3 (0.099) | |||||||
4 (0.112) | |||||||
5 (0.125) | |||||||
6 (0.138) | |||||||
8 (0.164) | |||||||
10 (0.190) |
Standard ASME B18.2.2 TABLE 1-1
Square and hex machine screw nutsInformation restricted to registered users: Login | Register now for a 14 day free trial
Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 table 1-1 Publication date: 2010 | ||||||||||
Nominal size or basic thread diameter | UNC (nr of threads x inch) | UNF (nr of threads x inch) | F basic | G min | G max | H min | H max | G1 min | G1 max | |
inch | mm | |||||||||
0 (0.060) | 1.52 | - | 80 | 0.156 | 0.206 | 0.221 | 0.043 | 0.050 | 0.171 | 0.180 |
1 (0.073) | ||||||||||
2 (0.086) | ||||||||||
3 (0.099) | ||||||||||
4 (0.112) | ||||||||||
5 (0.125) | ||||||||||
6 (0.138) | ||||||||||
8 (0.164) | ||||||||||
10 (0.190) | ||||||||||
12 (0.216) | ||||||||||
1/4 (0.250) | ||||||||||
5/16 (0.312) | ||||||||||
3/8 (0.375) |
Standard ASME B18.2.2 TABLE 10
Heavy Hex Nuts and heavy Hex Jam nutsInformation restricted to registered users: Login | Register now for a 14 day free trial
Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 - Table 10 Publication date: 2010 | ||||||||||
d Thread size | Nr. of threads x inch | G min | G max | F basic max | F min | H min | H max | H1 min | H1 max | |
UNC | UNF | |||||||||
1/4 | 20 | 28 | 0.556 | 0.577 | 0.500 | 0.488 | 0.218 | 0.250 | 0.156 | 0.188 |
5/16 | 18 | 24 | 0.622 | 0.650 | 0.562 | 0.546 | 0.280 | 0.314 | 0.186 | 0.220 |
3/8 | ||||||||||
7/16 | ||||||||||
1/2 | ||||||||||
9/16 | ||||||||||
5/8 | ||||||||||
3/4 | ||||||||||
7/8 | ||||||||||
1 | ||||||||||
1-1/8 | ||||||||||
1-1/4 | ||||||||||
1-3/8 | ||||||||||
1-1/2 | ||||||||||
1-5/8 | ||||||||||
1-3/4 | ||||||||||
1-7/8 | ||||||||||
2 | ||||||||||
2-1/4 | ||||||||||
2-1/2 | ||||||||||
2-3/4 | ||||||||||
3 | ||||||||||
3-1/4 | ||||||||||
3-1/2 | ||||||||||
3-3/4 | ||||||||||
4 |
Standard ASME B18.2.2 TABLE 3
Hex Flat Nuts and Hex Flat Jam NutsInformation restricted to registered users: Login | Register now for a 14 day free trial
Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 Table 3 Publication date: 2010 | |||||||
Nominal size or basic major thread diameter | G min | G max | F basic | H min | H max | H1 min | H1 max |
1-1/8 (1.1250) | 1.859 | 1.949 | 1.688 | 0.970 | 1.030 | 0.595 | 0.655 |
1-1/4 (1.2500) | 2.066 | 2.165 | 1.875 | 1.062 | 1.126 | 0.718 | 0.782 |
1-3/8 (1.3750) | |||||||
1-1/2 (1.5000) |
Standard ASME B18.2.2 TABLE 6
Hex thick nutsInformation restricted to registered users: Login | Register now for a 14 day free trial
Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 TABLE 6 Publication date : 2010 | |||||||
Nominal size or Bsic major dia. of the Thread | G min | G max | F min | F max | H min | H max | |
1/4 | 0.488 | 0.505 | 0.428 | 0.438 | 0.274 | 0.288 | |
5/16 | 0.557 | 0.577 | 0.489 | 0.500 | 0.320 | 0.336 | |
3/8 | |||||||
7/16 | |||||||
1/2 | |||||||
9/16 | |||||||
5/8 | |||||||
3/4 | |||||||
7/8 | |||||||
1 | |||||||
1-1/8 | |||||||
1-1/4 | |||||||
1-3/8 | |||||||
1-1/2 |
Standard ASME B18.2.2 TABLE 9
Heavy hex flat nuts and heavy hex flat jam nuts.Information restricted to registered users: Login | Register now for a 14 day free trial
Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 Table 9 Publication date : 2010 | |||||||||
Nominal size or Bsic major dia. of the Thread | G min | G max | F min | F max | H min | H max | H1 min | H1 max | |
1-1/8 | 2.002 | 2.093 | 1.756 | 1.812 | 1.079 | 1.155 | 0.579 | 0.655 | |
1-1/4 | 2.209 | 2.309 | 1.938 | 2.000 | 1.187 | 1.282 | 0.687 | 0.782 | |
1-3/8 | |||||||||
1-1/2 | |||||||||
1-3/4 | |||||||||
2 | |||||||||
2-1/4 | |||||||||
2-1/2 | |||||||||
2-3/4 | |||||||||
3 | |||||||||
3-1/4 | |||||||||
3-1/2 | |||||||||
3-3/4 | |||||||||
4 |
Details
Hexagon nuts, inch series

Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 2010 table 4 - Hex Nuts, Hex jam nuts | ||||||
d Thread size
|
Nr. of threads x inch |
G min
|
F basic
|
H basic | H1 basic | |
UNC | UNF | |||||
1/4
|
20 | 28 |
0.488
|
0.438 | 0.219 | 0.1565 |
5/16
|
18 | 24 |
0.557
|
0.5 | 0.266 | 0.1875 |
3/8
|
16 | 24 |
0.628
|
0.562
|
0.328 | 0.219 |
7/16
|
14 | 20 |
0.698
|
0.625
|
0.375 | 0.25 |
1/2
|
13 | 20 |
0.840
|
0.75
|
0.4375 | 0.3125 |
9/16
|
12 | 18 | 0.910 |
0.812
|
0.484 | 0.3125 |
5/8
|
11 | 18 |
1.051
|
0.937 | 0.547 | 0.375 |
3/4
|
10 | 16 |
1.254
|
1.125
|
0.641 | 0.422 |
7/8
|
9 | 14 | 1.465 |
1.313
|
0.75 | 0.484 |
1
|
8 | 12 |
1.675
|
1.50
|
0.859 | 0.547 |
1-1/8 | 7 | 12 | 1.859 | 1.625 | 0.969 | 0.609 |
1-1/4 | 7 | 12 | 2.066 | 1.875 | 1.062 | 0.719 |
1-3/8 | 6 | 12 | 2.273 | 2 | 1.172 | 0.781 |
1-1/2 | 6 | 12 | 2.480 | 2.25 | 1.281 | 0.844 |
1-5/8 | - | - | 2.686 | 2.438 | 1.39 | 0.906 |
1-3/4 | 5 | - | 2.893 | 2.625 | 1.5 | 0.969 |
1-7/8 | - | - | 3.099 | 2.813 | 1.609 | 1.031 |
2 | 4.5 | - | 3.306 | 3 | 1.719 | 1.094 |
2-1/4 | 4.5 | - | 3.719 | 3.375 | 1.938 | 1.211 |
2-1/2 | 4 | - | 4.133 | 3.75 | 2.157 | 1.414 |
2-3/4 | 4 | - | 4.546 | 4.125 | 2.375 | 1.539 |
3 | 4 | - | 4.959 | 4.5 | 2.594 | 1.664 |
3-1/4 | 4 | - | 5.373 | 4.875 | 2.813 | 1.781 |
3-1/2 | 4 | - | 5.786 | 5.25 | 3.032 | 1.9065 |
3-374 | 4 | - | 6.199 | 5.625 | 3.250 | 2.031 |
4 | 4 | - | 6.612 | 6 | 3.469 | 2.1565 |
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Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 -2010- table 10 Heavy Hex Nuts. Heavy Hex Jam Nuts | ||||||
d Thread size
|
Nr. of threads x inch |
G min
|
F basic
|
H basic | H1 basic | |
UNC | UNF | |||||
1/4 | 20 | 28 | 0.556 | 0.5 | 0.234 | 0.172 |
5/16 | 18 | 24 | 0.622 | 0.562 | 0.297 | 0.203 |
3/8 | 16 | 24 | 0.763 | 0.688 | 0.359 | 0.234 |
7/16 | 14 | 20 | 0.83 | 0.75 | 0.422 | 0.266 |
1/2
|
13 | 20 |
0.969
|
0.875 | 0.484 | 0.297 |
9/16 | 12 | 18 | 1.037 | 0.938 | 0.547 | 0.328 |
5/8
|
11 | 18 | 1.175 | 1.063 | 0.609 | 0.359 |
3/4
|
10 | 16 | 1.383 |
1.25
|
0.734 | 0.422 |
7/8
|
9 | 14 | 1.589 |
1.438
|
0.859 | 0.484 |
1
|
8 | 12 | 1.769 |
1.625
|
0.984 | 0.547 |
1-1/8 | 7 | 12 | 2.002 | 1.813 | 1.109 | 0.609 |
1-1/4 | 7 | 12 | 2.209 | 2 | 1.219 | 0.719 |
1-3/8 | 6 | 12 | 2.416 | 2.188 | 1.342 | 0.781 |
1-1/2 | 6 | 12 | 2.622 | 2.375 | 1.469 | 0.844 |
1-5/8 | - | - | 2.829 | 2.563 | 1.594 | 0.906 |
1-3/4 | 5 | - | 3.035 | 2.75 | 1.719 | 0.969 |
1-7/8 | - | - | 3.242 | 2.938 | 1.844 | 1.031 |
2 | 4.5 | - | 3.449 | 3.125 | 1.969 | 1.09 |
2-1/4 | 4.5 | - | 3.862 | 3.5 | 2.203 | 1.203 |
2-1/2 | 4 | - | 4.275 | 3.875 | 2.453 | 1.453 |
2-3/4 | 4 | - | 4.688 | 4.25 | 2.703 | 1.578 |
3 | 4 | - | 5.102 | 4.625 | 2.953 | 1.703 |
3-1/4 | 4 | - | 5.515 | 5 | 3.188 | 1.813 |
3-1/2 | 4 | - | 5.928 | 5.375 | 3.438 | 1.938 |
3-3/4 | 4 | - | 6.341 | 5.75 | 3.688 | 1.063 |
4 | 4 | - | 6.755 | 6.125 | 3.938 | 1.188 |
Full list of Suppliers of Hexagon nuts, inch series

Founded in 1969, Buora D.P.U. is a distributor certified following ISO 9001.
The company offers the complete range of high strength fasteners, ready on stock, both coarse and fine pitches with metric and inch threads.
Distributor of prestigious brands such as UNBRAKO and NORD-LOCK, for Buora D.P.U. the service always comes first, therefore there is not minimum quantity required.
Distributor of inch sized fasteners, oil and gas fasteners and turned special screws
Manufacturer and distributor of standard and special nuts, both in metric and imperial sizes
Manufacturer of hexagon nuts, weld nuts, square nuts and wing nuts.
Material: Stainless Steel, Carbon Steel, Brass C2700/C2600 Silicon Bronze 651
Size: M1.6-M24, #0-1"
Leader in the forged steel structural hardware industry: stud bolts, nuts, eye bolts, turnbucklesÂ
We offer logistics and inventory management and integrated supply chain management services covering a wide market of OEM fasteners (KanBan), MRO and Personal Protective Equipment (Vending Machine).
Manufacturing of special fasteners and machined (inconel, monel, super duplex, hastelloy, titanium, nimonic, B16 and Durehete)Â Â
Manufacturing, stocking and distributing petro-chemical grade studbolt assemblies and fasteners.
Manufacturer of nuts from 2mm to 90mm, with metric and inch thread in different materials such as brass, steel, stainless steel, aluminium.
Distributor of nuts for the Oil & Gas field, metric and inch sizes according to ASTM A194, ASME B18.2.2, DIN 934 H=D, EN 14399 Class 10 specifications.Â
Manufacturer of threaded items, mainly screwed rods, engineering studs, bright bolts and sets and special items according to customer specifications
Leader manufacturer of hex nuts, cap nuts, wing nuts, flange nuts, nylon insert nuts, weld nuts, square nuts, wheel nuts, etc...
Manufacturer of nuts for automotive: hexagon nuts, flange nuts, wheel nuts, castel nuts, lock nuts, weld nuts
Manufacturer of special cold and hot forged nuts and bolts: Metric, UNF, UNC, BSF & BSW (Whitworth) threadforms
Â
Manufacturer of inch bolts, nuts and stud bolts. Diameter from 3/4″ up to 26″ and lenghts from 1″ up to 36″
Manufacturer of all types of fasteners ranging in size from 3/8” to 4-1/4” for railroad, waterworks and industrial sector
Manufacturer of nuts:Â self locking nuts, nylon lock nuts, metal lock nuts flange lock nuts, dome cap nuts, weld nuts DIN 1624 Tee nuts, wing nuts, cage nuts and all kind of special nuts.
Specialized manufacturer of steel hex nuts and bolts, HDG fasteners and for steel construction with an yearly production capacity of 110,000 M/T