Caliper Overseas is a reliable Stainless Steel Hex Nut Manufacturer and Supplier in India, providing quality fastening solutions made for strength and durability.A stainless steel hex nut is a six sided fastener that is used in combination with bolts to firmly connect materials. Known for its resistance to corrosion and robust construction, it is an essential part in mechanical, construction and industrial use.
These hex nuts are produced in accordance with international quality standards like ASTM, DIN, and ISO, guaranteeing high performance and quality. It is durable, heat-resistant and have long term reliability. It has a fine finish, simple to install and can be utilized with various bolt sizes. Whether you require it for heavy-duty equipment or basic fixtures, stainless steel hex nuts offer unparalleled performance. For the highest quality and reliable service contact us today to find a wide variety of sizes and specifications to suit your requirements.

| 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 |
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|
F |
G |
H |
(d) |
Specified Proof Load |
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|
Up to 150,000 psi |
150,000 psi and Greater |
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|
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 |
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|
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 |
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|
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 |
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|
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 |
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|
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 |
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|
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 |
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|
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 |
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|
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 |
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|
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 |
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|
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 |
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|
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 |
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|
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 |
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|
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 |
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|
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 |
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|
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 |
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|
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 |
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|
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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