| Measured in Inches | ||||||
|---|---|---|---|---|---|---|
| Size Primary Inch |
Basic Major Diameter Inch |
Basic Pitch Diameter Inch |
Minor Diameter, inch | Minor Dia. Area sq. inch |
Tensile Stress Area sq. inch |
|
| External Thread | Internal Thread | |||||
| #12 | 0.216 | 0.1928 | 0.1734 | 0.1773 | 0.0226 | 0.0258 |
| 1/4 | 0.25 | 0.2268 | 0.2074 | 0.2113 | 0.0326 | 0.0364 |
| 5/16 | 0.3125 | 0.2893 | 0.2699 | 0.2738 | 0.0556 | 0.0606 |
| 3/8 | 0.375 | 0.3518 | 0.3324 | 0.3363 | 0.0848 | 0.0909 |
| 7/16 | 0.4375 | 0.4143 | 0.3949 | 0.3988 | 0.1201 | 0.1274 |
| 1/2 | 0.5 | 0.4768 | 0.4574 | 0.4613 | 0.162 | 0.17 |
| 9/16 | 0.5625 | 0.5393 | 0.5199 | 0.5238 | 0.209 | 0.219 |
| 5/8 | 0.625 | 0.6018 | 0.5824 | 0.5863 | 0.263 | 0.274 |
| 11/16 | 0.6875 | 0.6643 | 0.6449 | 0.6488 | 0.323 | 0.335 |
| 3/4 | 0.75 | 0.7268 | 0.7074 | 0.7113 | 0.389 | 0.402 |
| 13/16 | 0.8125 | 0.7893 | 0.7699 | 0.7738 | 0.461 | 0.475 |
| 7/8 | 0.875 | 0.8518 | 0.8324 | 0.8363 | 0.539 | 0.554 |
| 15/16 | 0.9375 | 0.9143 | 0.8949 | 0.8988 | 0.624 | 0.64 |
| 1 | 1 | 0.9768 | 0.9574 | 0.9613 | 0.714 | 0.732 |
| 1-1/16 | 1.0625 | 1.0393 | 1.0199 | 1.0238 | 0.811 | 0.83 |
| 1-1/8 | 1.125 | 1.1018 | 1.0824 | 1.0863 | 0.914 | 0.933 |
| 1-3/16 | 1.1875 | 1.1643 | 1.1449 | 1.1488 | 1.023 | 1.044 |
| 1-1/4 | 1.25 | 1.2268 | 1.2074 | 1.2113 | 1.138 | 1.16 |
| 1-5/16 | 1.3125 | 1.2893 | 1.2699 | 1.2738 | 1.259 | 1.282 |
| 1-3/8 | 1.375 | 1.3518 | 1.3324 | 1.3363 | 1.386 | 1.411 |
| 1-7/16 | 1.4375 | 1.4143 | 1.3949 | 1.3988 | 1.52 | 1.55 |
| 1-1/2 | 1.5 | 1.4768 | 1.4574 | 1.4613 | 1.66 | 1.69 |