Question

the \20\ in the bolt size 1/4 - 20 x 2 signifies the ______________. grade total number of threads shank diameter length threads per inch none of the above

Explanation:

In bolt sizing notation like 1/4 - 20 x 2, the first number (1/4) is the nominal diameter, the number 20 represents the threads per inch, and the last number (2) is the length.

Answer:

E. Threads per inch