Hex head bolts, with UNC thread ANSI B18.2.1

Hexagon bolts U6S imperial thread UNC

The lengths with an H are fully-threaded. 
The lengths with an D are partially threaded.

d11/4”5/16”3/8”7/16”1/2”9/16”5/8”3/4”7/8”1”
# threads/inch201816141312111098
b19222528323538445157
e max12.814.716.518.32223.827.53338.544
k45.267.17.99.19.911.913.915.5
s "7/16”1/2”9/16”5/8”3/4”13/16”1 5/16”1 1/8”1 5/16”1 1/2”
s mm11.112.714.315.91920.623.828.633.338.1