1/2-20 Grade 5 Hex Head Cap Screws

The length of a cap screw is measured from the under-head bearing surface to the extreme end of the screw.
(FT)=Full Thread | (PT)=Partial Thread
Thread Length on a 1/4-28 bolt is approx. 1-1/4"
Wrench Size = 3/4"

Stock Photos - to verify Thread Length, goto:

Torque Chart