1"-8 Grade 5 Hex Head Cap Screws Coarse (USS) Thread Zinc Plated Steel
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 1-8 bolt is approx. 2-1/4" Wrench Size = 1-1/2"
