|
 |
| UNIFIED STANDARD PITCH DIAMETER CHART THREAD RING GAGES AND SETTING PLUGS |
| NOMINAL SIZE |
UNIFIED |
NOMINAL SIZE |
UNIFIED |
| GO |
NO GO |
GO |
NO GO |
GO |
NO GO |
GO |
NO GO |
| CL. 2A |
CL. 2A |
CL. 3A |
CL. 3A |
CL. 2A |
CL. 2A |
CL. 3A |
CL. 3A |
| #0-80 UNF |
0.0514 |
0.0496 |
0.0519 |
0.0506 |
9/16-24 UNEF |
0.5342 |
0.5303 |
0.5354 |
0.5325 |
| #1-64 UNC |
0.0623 |
0.0603 |
0.0629 |
0.0614 |
5/8-11 UNC |
0.5644 |
0.5589 |
0.5660 |
0.5619 |
| #1-72 UNF |
0.0634 |
0.0615 |
0.0640 |
0.0626 |
5/8-18 UNF |
0.5875 |
0.5828 |
0.5889 |
0.5854 |
| #2-56 UNC |
0.0738 |
0.0717 |
0.0744 |
0.0728 |
5/8-24 UNEF |
0.5967 |
0.5927 |
0.5979 |
0.5949 |
| #2-64 UNF |
0.0753 |
0.0733 |
0.0759 |
0.0744 |
11/16-24 UNEF |
0.6592 |
0.6552 |
0.6604 |
0.6574 |
| #3-48 UNC |
0.0848 |
0.0825 |
0.0855 |
0.0838 |
3/4-10 UNC |
0.6832 |
0.6773 |
0.6850 |
0.6806 |
| #3-56 UNF |
0.0867 |
0.0845 |
0.0874 |
0.0858 |
3/4-16 UNF |
0.7079 |
0.7029 |
0.7094 |
0.7056 |
| #4-40 UNC |
0.0950 |
0.0925 |
0.0958 |
0.0939 |
3/4-20 UNEF |
0.7162 |
0.7118 |
0.7175 |
0.7142 |
| #4-48 UNF |
0.0978 |
0.0954 |
0.0985 |
0.0967 |
13/16-20 UNEF |
0.7787 |
0.7743 |
0.7800 |
0.7767 |
| #5-40 UNC |
0.1080 |
0.1054 |
0.1088 |
0.1069 |
7/8-9 UNC |
0.8009 |
0.7946 |
0.8028 |
0.7981 |
| #5-44 UNF |
0.1095 |
0.1070 |
0.1102 |
0.1083 |
7/8-14 UNF |
0.8270 |
0.8216 |
0.8286 |
0.8245 |
| #6-32 UNC |
0.1169 |
0.1141 |
0.1177 |
0.1156 |
7/8-20 UNEF |
0.8412 |
0.8368 |
0.8425 |
0.8392 |
| #6-40 UNF |
0.1210 |
0.1184 |
0.1218 |
0.1198 |
15/16-20 UNEF |
0.9036 |
0.8991 |
0.9050 |
0.9016 |
| #8-32 UNC |
0.1428 |
0.1399 |
0.1437 |
0.1415 |
1"-8 UNC |
0.9168 |
0.9100 |
0.9188 |
0.9137 |
| #8-36 UNF |
0.1452 |
0.1424 |
0.1460 |
0.1439 |
1"-12 UNF |
0.9441 |
0.9382 |
0.9459 |
0.9415 |
| #10-24 UNC |
0.1619 |
0.1586 |
0.1629 |
0.1604 |
1"-14 UNS |
0.9519 |
0.9463 |
0.9536 |
0.9494 |
| #10-32 UNF |
0.1688 |
0.1658 |
0.1697 |
0.1674 |
1"-20 UNEF |
0.9661 |
0.9616 |
0.9675 |
0.9641 |
| #12-24 UNC |
0.1879 |
0.1845 |
0.1889 |
0.1863 |
1 1/16-12 UN |
1.0067 |
1.0010 |
1.0084 |
1.0042 |
| #12-28 UNF |
0.1918 |
0.1886 |
0.1928 |
0.1904 |
1 1/16-18 UNEF |
1.0250 |
1.0203 |
1.0264 |
1.0228 |
| #12-32 UNEF |
0.1948 |
0.1917 |
0.1957 |
0.1933 |
1 1/8-7 UNC |
1.0300 |
1.0228 |
1.0322 |
1.0268 |
| 1/4-20 UNC |
0.2164 |
0.2127 |
0.2175 |
0.2147 |
1 1/8-12 UNF |
1.0691 |
1.0631 |
1.0709 |
1.0664 |
| 1/4-28 UNF |
0.2258 |
0.2225 |
0.2268 |
0.2243 |
1 1/8-18 UNEF |
1.0875 |
1.0828 |
1.0889 |
1.0853 |
| 1/4-32 UNEF |
0.2287 |
0.2255 |
0.2297 |
0.2273 |
1 3/16-12 UN |
1.1317 |
1.1259 |
1.1334 |
1.1291 |
| 5/16-18 UNC |
0.2752 |
0.2712 |
0.2764 |
0.2734 |
1 3/16-18 UNEF |
1.1499 |
1.1450 |
1.1514 |
1.1478 |
| 5/16-24 UNF |
0.2843 |
0.2806 |
0.2854 |
0.2827 |
1 1/4-7 UNC |
1.1550 |
1.1476 |
1.1572 |
1.1517 |
| 5/16-32 UNEF |
0.2912 |
0.2880 |
0.2922 |
0.2898 |
1 1/4-12 UNF |
1.1941 |
1.1879 |
1.1959 |
1.1913 |
| 3/8-16 UNC |
0.3331 |
0.3287 |
0.3344 |
0.3311 |
1 1/4-18 UNEF |
1.2124 |
1.2075 |
1.2139 |
1.2103 |
| 3/8-24 UNF |
0.3468 |
0.3430 |
0.3479 |
0.3450 |
1 5/16-12 UN |
1.2567 |
1.2509 |
1.2584 |
1.2541 |
| 3/8-32 UNEF |
0.3537 |
0.3503 |
0.3547 |
0.3522 |
1 5/16-18 UNEF |
1.2749 |
1.2700 |
1.2764 |
1.2728 |
| 7/16-14 UNC |
0.3897 |
0.3850 |
0.3911 |
0.3876 |
1 3/8-6 UNC |
1.2643 |
1.2563 |
1.2667 |
1.2607 |
| 7/16-20 UNF |
0.4037 |
0.3995 |
0.4050 |
0.4019 |
1 3/8-12 UNF |
1.3190 |
1.3127 |
1.3209 |
1.3162 |
| 7/16-28 UNEF |
0.4132 |
0.4096 |
0.4143 |
0.4116 |
1 3/8-18 UNEF |
1.3374 |
1.3325 |
1.3389 |
1.3353 |
| 1/2-13 UNC |
0.4485 |
0.4435 |
0.4500 |
0.4463 |
1 7/16-12 UN |
1.3816 |
1.3757 |
1.3834 |
1.3790 |
| 1/2-20 UNF |
0.4662 |
0.4619 |
0.4675 |
0.4643 |
1 7/16-18 UNEF |
1.3999 |
1.3949 |
1.4014 |
1.3977 |
| 1/2-28 UNEF |
0.4757 |
0.4720 |
0.4768 |
0.4740 |
1 1/2-6 UNC |
1.3893 |
1.3812 |
1.3917 |
1.3856 |
| 9/16-12 UNC |
0.5068 |
0.5016 |
0.5084 |
0.5045 |
1 1/2-12 UNF |
1.4440 |
1.4376 |
1.4459 |
1.4411 |
| 9/16-18 UNF |
0.5250 |
0.5205 |
0.5264 |
0.5230 |
1 1/2-18 UNEF |
1.4624 |
1.4574 |
1.4639 |
1.4602 |
|
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