FULLY THREADED ROD
  ANSI/ASME B1.1 1982
All Dimensions in Inches
Thread Diameter Basic Major Diameter Basic Pitch Diameter Thread Diameter Basic Major Diameter Basic Pitch Diameter
2/56 0.0860 0.0744 9/16-18 0.5625 0.5264
2/64 0.0860 0.0759 5/8-11 0.6250 0.5660
3/48 0.0990 0.0855 5/8-18 0.6250 0.5889
3/56 0.0990 0.0874 3/4-10 0.7500 0.6850
4/40 0.1120 0.0958 3/4-16 0.7500 0.7094
4/48 0.1120 0.0985 7/8-9 0.8750 0.8028
5/40 0.1250 0.1088 7/8-14 0.8750 0.8286
5/44 0.1250 0.1102 1-8 1.0000 0.9188
6/32 0.1380 0.1177 1-12 1.0000 0.9459
6/40 0.1380 0.1218 1-1/8-7 1.1250 1.0322
8/32 0.1640 0.1437 1-1/8-12 1.1250 1.0709
8/36 0.1640 0.1460 1-1/4-7 1.2500 1.1572
10/24 0.1900 0.1629 1-1/4-12 1.2500 1.1959
10/32 0.1900 0.1697 1-3/8-6 1.3750 1.2667
12/24 0.2160 0.1889 1-3/8-12 1.3750 1.3209
12/28 0.2160 0.1928 1-1/2-6 1.5000 1.3917
1/4-20 0.2500 0.2175 1-1/2-12 1.5000 1.4459
1/4-28 0.2500 0.2268 1-3/4-5 1.7500 1.6201
5/16-18 0.3125 0.2764 2-4-1/2 2.0000 1.8557
5/16-24 0.3125 0.2854 2-1/4-4-1/2 2.2500 2.1057
3/8-16 0.3750 0.3344 2-1/2-4 2.5000 2.3376
3/8-24 0.3750 0.3479 2-3/4-4 2.7500 2.5876
7/16-14 0.4375 0.3911 3-4 3.0000 2.8376
7/16-20 0.4375 0.4050 3-1/4-4 3.2500 3.0876
1/2-13 0.5000 0.4500 3-1/2-4 3.5000 3.3376
1/2-20 0.5000 0.4675 3-3/4-4 3.7500 3.5876
9/16-12 0.5625 0.5084 4-4 4.0000 3.8376