
公称尺寸 in. | 每英寸牙数 (t.p.i) | 螺距 in | 牙高 in | 大径 in | 中径 in | 小径 in | 在牙底处的横截面积 in2 |
| 1/8 | 40 | 0.02500 | 0.0160 | 0.1250 | 0.1090 | 0.0930 | 0.0068 |
| 3/16 | 24 | 0.04167 | 0.0267 | 0.1875 | 0.1608 | 0.1341 | 0.0141 |
| 1/2 | 20 | 0.05000 | 0.0320 | 0.2500 | 0.2180 | 0.1860 | 0.0272 |
| 5/16 | 18 | 0.05556 | 0.0356 | 0.3125 | 0.2769 | 0.2413 | 0.0457 |
| 3/8 | 16 | 0.06250 | 0.0400 | 0.3750 | 0.3350 | 0.2950 | 0.0683 |
| 7/16 | 14 | 0.07143 | 0.0457 | 0.4375 | 0.3918 | 0.3461 | 0.0941 |
| 1/2 | 12 | 0.08333 | 0.0534 | 0.5000 | 0.4466 | 0.3932 | 0.1214 |
| 9/16 | 12 | 0.08333 | 0.0534 | 0.5625 | 0.5091 | 0.4557 | 0.1631 |
| 5/8 | 11 | 0.09091 | 0.0582 | 0.6250 | 0.5668 | 0.5086 | 0.2032 |
| 11/16 | 11 | 0.09091 | 0.0582 | 0.6875 | 0.6293 | 0.5711 | 0.2562 |
| 3/4 | 10 | 0.10000 | 0.0640 | 0.7500 | 0.6860 | 0.6220 | 0.3039 |
| 7/8 | 9 | 0.11111 | 0.0711 | 0.8750 | 0.8039 | 0.7328 | 0.4218 |
| 1 | 8 | 0.12500 | 0.0800 | 1.0000 | 0.9200 | 0.8400 | 0.5542 |
| 1-1/8 | 7 | 0.14286 | 0.0915 | 1.1250 | 1.0335 | 0.9420 | 0.6969 |
| 1-1/4 | 7 | 0.14286 | 0.0915 | 1.2500 | 1.1585 | 1.0670 | 0.8942 |
| 1-1/2 | 6 | 0.16667 | 0.1067 | 1.5000 | 1.3933 | 1.2866 | 1.3000 |
| 1-3/4 | 5 | 0.20000 | 0.1281 | 1.7500 | 1.6219 | 1.4938 | 1.7530 |
| 2 | 4.5 | 0.22222 | 0.1423 | 2.0000 | 1.8577 | 1.7154 | 2.3110 |
| 2-1/4 | 4 | 0.25000 | 0.1601 | 2.2500 | 2.0899 | 1.9298 | 2.9250 |
| 2-1/2 | 4 | 0.25000 | 0.1601 | 2.5000 | 2.3399 | 2.1798 | 3.7320 |
| 2-3/4 | 3.5 | 0.28571 | 0.1830 | 2.7500 | 2.5670 | 2.3840 | 4.4640 |
| 3 | 3.5 | 0.28571 | 0.1830 | 3.0000 | 2.8170 | 2.6340 | 5.4490 |
| 3-1/4 | 3.25 | 0.30769 | 0.1970 | 3.2500 | 3.0530 | 2.8560 | 6.4060 |
| 3-1/2 | 3.25 | 0.30769 | 0.1970 | 3.5000 | 3.3030 | 3.1060 | 7.5770 |
| 3-3/4 | 3 | 0.33333 | 0.2134 | 3.7500 | 3.5366 | 3.3232 | 8.6740 |
| 4 | 3 | 0.33333 | 0.2134 | 4.0000 | 3.7866 | 3.5732 | 10.0300 |
| 4-1/2 | 2.875 | 0.34783 | 0.2227 | 4.5000 | 4.2773 | 4.0546 | 12.9100 |
| 5 | 2.75 | 0.36364 | 0.2328 | 5.0000 | 4.7672 | 4.5344 | 16.1500 |
| 5-1/2 | 2.625 | 0.38095 | 0.2439 | 5.5000 | 5.2561 | 5.0122 | 19.7300 |
| 6 | 2.5 | 0.40000 | 0.2561 | 6.0000 | 5.7439 | 5.4878 | 23.6500 |
公称尺寸 in. | 每英寸牙数 (t.p.i) | 螺距 in | 牙高 in | 大径 in | 中径 in | 小径 in | 在牙底处的横截面积 in2 |
| 3/16 | 32 | 0.0313 | 0.0200 | 0.1875 | 0.1675 | 0.1475 | 0.0171 |
| 7/32 | 28 | 0.0357 | 0.0229 | 0.2188 | 0.1959 | 0.1730 | 0.0235 |
| 1/4 | 26 | 0.0385 | 0.0246 | 0.2500 | 0.2254 | 0.2008 | 0.0317 |
| 9/32 | 26 | 0.0385 | 0.0246 | 0.2812 | 0.2566 | 0.2320 | 0.0423 |
| 5/16 | 22 | 0.0455 | 0.0291 | 0.3125 | 0.2834 | 0.2543 | 0.0508 |
| 3/8 | 20 | 0.0500 | 0.0320 | 0.3750 | 0.3430 | 0.3110 | 0.0760 |
| 7/16 | 18 | 0.0556 | 0.0356 | 0.4375 | 0.4019 | 0.3663 | 0.1054 |
| 1/2 | 16 | 0.0625 | 0.0400 | 0.5000 | 0.4600 | 0.4200 | 0.1385 |
| 9/16 | 16 | 0.0625 | 0.0400 | 0.5625 | 0.5225 | 0.4825 | 0.1828 |
| 5/8 | 14 | 0.0714 | 0.0457 | 0.6250 | 0.5793 | 0.5336 | 0.2236 |
| 11/16 | 14 | 0.0714 | 0.0457 | 0.6875 | 0.6418 | 0.5961 | 0.2791 |
| 3/4 | 12 | 0.0833 | 0.0534 | 0.7500 | 0.6966 | 0.6432 | 0.3249 |
| 7/8 | 11 | 0.0909 | 0.0582 | 0.8750 | 0.8168 | 0.7586 | 0.4520 |
| 1 | 10 | 0.1000 | 0.0640 | 1.0000 | 0.9360 | 0.8720 | 0.5972 |
| 1-1/8 | 9 | 0.1111 | 0.0711 | 1.1250 | 1.0539 | 0.9828 | 0.7586 |
| 1-1/4 | 9 | 0.1111 | 0.0711 | 1.2500 | 1.1789 | 1.1078 | 0.9639 |
| 1-3/8 | 8 | 0.1250 | 0.0800 | 1.3750 | 1.2950 | 1.2150 | 1.1590 |
| 1-1/2 | 8 | 0.1250 | 0.0800 | 1.5000 | 1.4200 | 1.3400 | 1.4100 |
| 1-5/8 | 8 | 0.1250 | 0.0800 | 1.6250 | 1.5450 | 1.4650 | 1.6860 |
| 1-3/4 | 7 | 0.1429 | 0.0915 | 1.7500 | 1.6585 | 1.5670 | 1.9280 |
| 2 | 7 | 0.1429 | 0.0915 | 2.0000 | 1.9085 | 1.8170 | 2.5930 |
| 2-1/4 | 6 | 0.1667 | 0.1067 | 2.2500 | 2.1433 | 2.0366 | 3.2580 |
| 2-1/2 | 6 | 0.1667 | 0.1067 | 2.5000 | 2.3933 | 2.2866 | 4.1060 |
| 2-3/4 | 6 | 0.1667 | 0.1067 | 2.7500 | 2.6433 | 2.5366 | 5.0540 |
| 3 | 5 | 0.2000 | 0.1281 | 3.0000 | 2.8719 | 2.7438 | 5.9130 |
| 3-1/4 | 5 | 0.2000 | 0.1281 | 3.2500 | 3.1219 | 2.9938 | 7.0390 |
| 3-1/2 | 4.5 | 0.2222 | 0.1423 | 3.5000 | 3.3577 | 3.2154 | 8.1200 |
| 3-3/4 | 4.5 | 0.2222 | 0.1423 | 3.7500 | 3.6077 | 3.4654 | 9.4320 |
| 4 | 4.5 | 0.2222 | 0.1423 | 4.0000 | 3.8577 | 3.7154 | 10.8400 |
| 4-1/4 | 4 | 0.2500 | 0.1601 | 4.2500 | 4.0899 | 3.9298 | 12.1300 |