Stainless steel hex nuts are an indispensable part of many mechanical and construction applications, where their durability, corrosion resistance, and strength make them invaluable components. Belonging to the fastener family, these fasteners play an essential role in joining parts securely across machinery, automobiles, aerospace projects, and structural engineering endeavours.
Hex nuts are designed with six-sided shapes, allowing quick tightening or loosening with tools such as wrenches. Their hexagonal configuration offers greater torque and stability than other nut shapes, making hex nuts perfect for high-vibration or heavy-load applications.
One of the primary features of stainless steel hex nuts is their material composition. Stainless steel is an alloy consisting primarily of iron, chromium and nickel with additional elements like molybdenum or titanium depending on grade; its surface offers superior resistance against corrosion, rusting and staining even in harsh environments exposed to moisture, chemicals or extreme temperatures; consequently making stainless steel nuts highly sought-after for outdoor, marine, industrial applications where exposure to corrosive elements are commonplace.
Depending on the specific application requirements, choosing a stainless steel grade depends on which grade best meets them. 18-8 stainless steel (type 304) is often chosen for general-purpose hex nuts due to its good corrosion resistance properties and general applications; higher-grade versions such as 316 or 316L may provide increased resistance against chlorides found in marine or coastal environments.
Stainless steel hex nuts offer unparalleled mechanical properties beyond corrosion resistance, such as high tensile strength. This means they can withstand substantial loads without deforming or failing, making them the ideal choice for critical structural connections where safety and reliability are paramount.
Stainless steel hex nuts are produced through precision machining to ensure accurate dimensions and consistent quality. They are available in various sizes, thread pitches, and finishes to accommodate diverse application needs; options may include plain, zinc-plated, and materials such as nylon or zinc flake for corrosion protection or anti-vibration properties.
Caliper Overseas is a distinguished manufacturer and supplier specializing in Stainless Steel Hex Nuts. With a dedication to high-end quality and accuracy, we provide a broad selection of stainless steel hex nuts designed to meet various industrial requirements. Our products use top-quality materials and modern manufacturing techniques that ensure longevity and dependability. With a primary focus on the satisfaction of our customers, we aim to offer high-quality products that meet or exceed your expectations.
| Hex Nuts Size | M02 to M33 |
|---|---|
| Diameter | 1/2″ up to 4″ |
| Threads Configuration | ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads |
| Length | 3 mm to 200 mm |
| Types | Heavy Hex Nuts, Large Heavy Hex Nuts, Heavy Hex Jam Nut, Heavy Hex Coupling Nut, Heavy Duty Hex Nuts |
| Dimensions | ASME B18.2.2 Heavy Hex Nuts, ASME B18.2.4.6M Metric Heavy Hex Nuts |
| Application | Wind tower, Nuclear power, Railway, Automotive industry, Construction, Electronic industry |
| Manufacturing Process | Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing |
| Coatings | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
Nominal Size |
TPI |
Unit |
Width Across Flats |
Width Across Corners |
Thickness Hex Nut |
Minor diameter (Bore) |
Ran out of Bearing Face FIM |
||||||
F |
G |
H |
(d) |
Specified Proof Load |
|||||||||
Up to 150,000 psi |
150,000 psi and Greater |
||||||||||||
Min. |
Max. |
Min. |
Max. |
Min. |
Max. |
Min. |
Max. |
Max. |
|||||
1/4 |
0.25 |
20 UNC |
Inch |
0.428 |
0.438 |
0.488 |
0.505 |
0.212 |
0.226 |
0.196 |
0.207 |
0.015 |
0.010 |
mm |
10.87 |
11.13 |
12.40 |
12.83 |
5.38 |
5.74 |
4.98 |
5.26 |
|||||
5/16 |
0.3125 |
18 UNC |
Inch |
0.489 |
0.500 |
0.557 |
0.577 |
0.258 |
0.273 |
0.252 |
0.265 |
0.016 |
0.011 |
mm |
12.42 |
12.70 |
14.15 |
14.66 |
6.55 |
6.93 |
6.40 |
6.73 |
|||||
3/8 |
0.375 |
16 UNC |
Inch |
0.551 |
0.562 |
0.628 |
0.650 |
0.320 |
0.337 |
0.307 |
0.321 |
0.017 |
0.012 |
mm |
14.00 |
14.27 |
15.95 |
16.51 |
8.13 |
8.56 |
7.80 |
8.15 |
|||||
7/16 |
0.4375 |
14 UNC |
Inch |
0.675 |
0.688 |
0.768 |
0.794 |
0.365 |
0.385 |
0.360 |
0.376 |
0.018 |
0.013 |
mm |
17.15 |
17.48 |
19.51 |
20.17 |
9.27 |
9.78 |
9.14 |
9.55 |
|||||
1/2 |
0.5 |
13 UNC |
Inch |
0.736 |
0.750 |
0.840 |
0.866 |
0.427 |
0.448 |
0.417 |
0.434 |
0.019 |
0.014 |
mm |
18.69 |
19.05 |
21.34 |
22.00 |
10.85 |
11.38 |
10.59 |
11.02 |
|||||
9/16 |
0.5625 |
12 UNC |
Inch |
0.861 |
0.875 |
0.982 |
1.010 |
0.473 |
0.496 |
0.472 |
0.490 |
0.020 |
0.015 |
mm |
21.87 |
22.23 |
24.94 |
25.65 |
12.01 |
12.60 |
11.99 |
12.45 |
|||||
5/8 |
0.625 |
11 UNC |
Inch |
0.922 |
0.938 |
1.051 |
1.083 |
0.535 |
0.559 |
0.527 |
0.546 |
0.021 |
0.016 |
mm |
23.42 |
23.83 |
26.70 |
27.51 |
13.59 |
14.20 |
13.39 |
13.87 |
|||||
3/4 |
0.75 |
10 UNC |
Inch |
1.088 |
1.125 |
1.240 |
1.299 |
0.617 |
0.665 |
0.642 |
0.663 |
0.023 |
0.018 |
mm |
27.64 |
28.58 |
31.50 |
32.99 |
15.67 |
16.89 |
16.31 |
16.84 |
|||||
7/8 |
0.875 |
9 UNC |
Inch |
1.269 |
1.312 |
1.447 |
1.516 |
0.724 |
0.776 |
0.755 |
0.778 |
0.025 |
0.020 |
mm |
32.23 |
33.32 |
36.75 |
38.51 |
18.39 |
19.71 |
19.18 |
19.76 |
|||||
1 |
1.000 |
8UNC |
Inch |
1.450 |
1.500 |
1.653 |
1.732 |
0.831 |
0.887 |
0.865 |
0.890 |
0.027 |
0.022 |
mm |
36.83 |
38.10 |
41.99 |
43.99 |
21.11 |
22.53 |
21.97 |
22.61 |
|||||
1-1/8 |
1.125 |
8UN |
Inch |
1.631 |
1.688 |
1.859 |
1.949 |
0.939 |
0.999 |
0.990 |
1.015 |
0.030 |
0.025 |
mm |
41.43 |
42.88 |
47.22 |
49.50 |
23.85 |
25.37 |
25.15 |
25.78 |
|||||
1-1/4 |
1.250 |
8UN |
Inch |
1.812 |
1.875 |
2.066 |
2.165 |
1.030 |
1.094 |
1.115 |
1.140 |
0.033 |
0.028 |
mm |
46.02 |
47.63 |
52.48 |
54.99 |
26.16 |
27.79 |
28.32 |
28.96 |
|||||
1-3/8 |
1.375 |
8UN |
Inch |
1.994 |
2.062 |
2.273 |
2.382 |
1.138 |
1.206 |
1.240 |
1.265 |
0.036 |
0.031 |
mm |
50.65 |
52.37 |
57.73 |
60.50 |
28.91 |
30.63 |
31.50 |
32.13 |
|||||
1-1/2 |
1.500 |
8UN |
Inch |
2.175 |
2.250 |
2.480 |
2.598 |
1.245 |
1.317 |
1.365 |
1.390 |
0.039 |
0.034 |
mm |
55.25 |
57.15 |
62.99 |
65.99 |
31.62 |
33.45 |
34.67 |
35.31 |
|||||
1-5/8 |
1.625 |
8UN |
Inch |
2.350 |
2.430 |
2.679 |
2.805 |
1.364 |
1.416 |
1.490 |
1.515 |
0.044 |
0.038 |
mm |
59.69 |
61.72 |
68.05 |
71.25 |
34.65 |
35.97 |
37.85 |
38.48 |
|||||
1-3/4 |
1.750 |
8UN |
Inch |
2.538 |
2.625 |
2.893 |
3.031 |
1.460 |
1.540 |
1.615 |
1.640 |
0.048 |
0.041 |
mm |
64.47 |
66.68 |
73.48 |
76.99 |
37.08 |
39.12 |
41.02 |
41.66 |
|||||
1-7/8 |
1.875 |
8UN |
Inch |
2.722 |
2.813 |
3.103 |
3.247 |
1.567 |
1.651 |
1.740 |
1.765 |
0.051 |
0.044 |
mm |
69.14 |
71.45 |
78.82 |
82.47 |
39.80 |
41.94 |
44.20 |
44.83 |
|||||
2 |
2.000 |
8UN |
Inch |
2.900 |
3.000 |
3.306 |
3.464 |
1.675 |
1.763 |
1.865 |
1.890 |
0.055 |
0.047 |
mm |
73.66 |
76.20 |
83.97 |
87.99 |
42.55 |
44.78 |
47.37 |
48.01 |
|||||
2-1/4 |
2.250 |
8UN |
Inch |
3.263 |
3.375 |
3.719 |
3.897 |
1.890 |
1.986 |
2.115 |
2.140 |
0.061 |
0.052 |
mm |
82.88 |
85.73 |
94.46 |
98.98 |
48.01 |
50.44 |
53.72 |
54.36 |
|||||
2-1/2 |
2.500 |
8UN |
Inch |
3.625 |
3.750 |
4.133 |
4.330 |
2.105 |
2.209 |
2.365 |
2.390 |
0.068 |
0.058 |
mm |
92.08 |
95.25 |
104.98 |
109.98 |
53.47 |
56.11 |
60.07 |
60.71 |
|||||
2-3/4 |
2.750 |
8UN |
Inch |
3.988 |
4.125 |
4.546 |
4.763 |
2.319 |
2.431 |
2.615 |
2.640 |
0.074 |
0.064 |
mm |
101.30 |
104.78 |
115.47 |
120.98 |
58.90 |
61.75 |
66.42 |
67.06 |
|||||
3 |
3.000 |
8UN |
Inch |
4.350 |
4.500 |
4.959 |
5.196 |
2.534 |
2.654 |
2.865 |
2.890 |
0.081 |
0.070 |
| Size | Weight |
|---|---|
| M1 | 0.030 |
| M1.2 | 0.054 |
| M1.4 | 0.063 |
| M1.6 | 0.076 |
| M2 | 0.142 |
| M2.5 | 0.280 |
| M3 | 0.384 |
| M3.5 | 0.514 |
| M4 | 0.81 |
| M5 | 1.23 |
| M6 | 2.50 |
| M7 | 3.12 |
| M8 | 5.20 |
| M10 | 11.6 |
| M12 | 17.3 |
| M14 | 25.0 |
| M16 | 33.3 |
| M18 | 49.4 |
| M20 | 64.4 |
| M22 | 79 |
| M24 | 110 |
| M27 | 165 |
| M30 | 223 |
| M33 | 288 |
| M36 | 393 |
| M39 | 502 |
| M42 | 652 |
| M45 | 800 |
| M48 | 977 |
| M52 | 1220 |
| M56 | 1420 |
| M60 | 1690 |
| M64 | 1980 |
| M68 | 2300 |
| M72 | 2670 |
| M76 | 3040 |
| M80 | 3440 |
| M85 | 3930 |
| M90 | 4930 |
| M100 | 6820 |
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