Standard Sizes
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Standard Sizes For UNC
2 - 0.086" 56 TPI
3 - 0.099" 48 TPI
4 - 0.112" 40 TPI
5 - 0.125" 40 TPI
6 - 0.138" 32 TPI
8 - 0.164" 32 TPI
10 - 0.19" 24 TPI
12 - 0.216" 24 TPI
1/4 - 0.25" 20 TPI
5/16 - 0.3125" 18 TPI
3/8 - 0.375" 16 TPI
7/16 - 0.4375" 14 TPI
1/2 - 0.5" 13 TPI
9/16 - 0.5625" 12 TPI
5/8 - 0.625" 11 TPI
3/4 - 0.75" 10 TPI
7/8 - 0.875" 9 TPI
1 - 1.0" 8 TPI
1 1/8 - 1.125" 7 TPI
1 1/4 - 1.25" 7 TPI
1 3/8 - 1.375" 6 TPI
1 1/2 - 1.5" 6 TPI
1 3/4 - 1.75" 5 TPI
2 - 2.0" 4.5 TPI
2 1/4 - 2.25" 4.5 TPI
2 1/2 - 2.5" 4 TPI
2 3/4 - 2.75" 4 TPI
3 - 3.0" 4 TPI
3 1/4 - 3.25" 4 TPI
3 1/2 - 3.5" 4 TPI
3 3/4 - 3.75" 4 TPI
4 - 4.0" 4 TPI
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