2a thread class right-hand 1.187" thread length round w/wrench flats head style 4-1/2 thread quantity per inch 2.375 in. dia 0.188 in. long undercut below head; 1.703 in. dia 0.188 in. long before thd portion; stepped portion at end of thds 0.500 in. long 1.625 in. dia 1/8 in. by 45 deg chamfer unc thread series
2a thread class right-hand 2.875" thread length round w/wrench flats head style 4 thread quantity per inch 3.000 in. dia 0.188 in. long undercut below head; 2.422 in. dia 0.188 in. long undercut before thds; stepped portion at end of thds 0.500 in. long 2.375 in. dia 1/8 in. by 45 deg chamfer unc thread series
2a thread class right-hand 2.187" thread length round w/wrench flats head style 4-1/2 thread quantity per inch K2.500 in. dia undercut below head unc thread series
2a thread class right-hand 1.540" thread length hexagon head style 12 thread quantity per inch undercut head; one hole located on threaded end 0.136 in. 0.146 in. diameter; 0.290 in. 0.330 in. distance from threaded end cadmium surface treated unf thread series
2a thread class right-hand 0.423" thread length hexagon head style 20 thread quantity per inch thd relief 0.426 in. dia by 0.125 in. w cadmium surface treated unf thread series
2a thread class right-hand 0.500" thread length hexagon head style 28 thread quantity per inch second shoulder threaded*0.312-24unf-2a-lh passivate surface treated unf thread series
3a thread class right-hand 0.938" thread length round w/wrench flats head style 18 thread quantity per inch two shank unthreaded holes drilled thru at 90.0 degrees.concentric holedrilled head end 0.438 inch dia b 3.000 inch deep. unf thread series
3a thread class right-hand 0.911" thread length hexagon head style 0.070" hole diameter 18 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.345" thread length dished hexagon head style 28 thread quantity per inch cadmium or chromate surface treated unf thread series
