- Technology Driven, High Performance Fasteners
- Sonipat, Haryana India
- sales@bigboltnut.com
ASME B18.2.2 (T-3) Grade 7
|
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 |
|
mm |
110.49 |
114.30 |
125.96 |
131.98 |
64.36 |
67.41 |
72.77 |
73.41 |
|||||