Used on mrap - unique nsn - maxxpro cat i. 99.210mm thread length bolt, cylinder head body diameter is 13.82 +/-.15; part is shot peened mj thread series
Used on mack trucks. 2a thread class right-hand 1.050" thread length hexagon head style 18 thread quantity per inch capscrew-special-body fit grade 5 bolt unf thread series