Bolt - Square, ANSI (in)
ASME Standards
- ASME B18.2.1
Length (L) of a square bolt is measured from underside of head to the end of the bolt.
|
|
|
|
Bolt Size |
Body Diameter D |
Width Across Flat A |
Width Across Corner B |
Thickness C | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Max |
Min |
Basic |
Max |
Min |
Max |
Min |
Basic |
Max |
Min | |
|
1/4 |
0.260 |
0.237 |
7/16 |
0.375 |
0.362 |
0.530 |
0.498 |
7/32 |
0.188 |
0.156 |
|
5/16 |
0.324 |
0.298 |
1/2 |
0.500 |
0.484 |
0.707 |
0.665 |
17/64 |
0.220 |
0.186 |
|
3/8 |
0.388 |
0.360 |
5/8 |
0.562 |
0.544 |
0.795 |
0.747 |
21/64 |
0.268 |
0.232 |
|
7/16 |
0.452 |
0.421 |
3/4 |
0.625 |
0.603 |
0.884 |
0.828 |
9/32 |
0.316 |
0.278 |
|
1/2 |
0.515 |
0.482 |
13/16 |
0.750 |
0.725 |
1.061 |
0.995 |
7/16 |
0.348 |
0.308 |
|
5/8 |
0.642 |
0.605 |
1 |
0.938 |
0.906 |
1.326 |
1.244 |
35/64 |
0.444 |
0.400 |
|
3/4 |
0.768 |
0.729 |
1 1/8 |
1.125 |
1.088 |
1.591 |
1.494 |
21/32 |
0.524 |
0.476 |
|
7/8 |
0.895 |
0.852 |
1 5/16 |
1.312 |
1.269 |
1.856 |
1.742 |
49/64 |
0.620 |
0.568 |
|
1 |
1.022 |
0.976 |
1 1/2 |
1.500 |
1.450 |
2.121 |
1.991 |
7/8 |
0.684 |
0.628 |
|
1 1/8 |
1.149 |
1.098 |
1 11/16 |
1.688 |
1.631 |
2.386 |
2.239 |
1 |
0.780 |
0.720 |
|
1 1/4 |
1.277 |
1.223 |
1 7/8 |
1.875 |
1.812 |
2.652 |
2.489 |
1 3/32 |
0.876 |
0.812 |
|
1 3/8 |
1.404 |
1.345 |
2 1/16 |
2.062 |
1.994 |
2.917 |
2.738 |
1 13/64 |
0.940 |
0.872 |
|
1 1/2 |
1.531 |
1.470 |
2 1/4 |
2.250 |
2.175 |
3.182 |
2.986 |
1 5/16 |
1.036 |
0.964 |