3a thread class right-hand fillister head style 14 thread quantity per inch screw, cap, hex socket cylindrical head, 1960 series zinc surface treated unc thread series
3a thread class right-hand fillister head style 20 thread quantity per inch screw, cap, hex socket cylindrical head, 1960 series drilled head hole iaw ff-s-86, tbl 1 zinc surface treated unc thread series
3a thread class right-hand flat fillister head style 18 thread quantity per inch screw, cap, hex socket cylindrical head, 1960 series passivate surface treated unc thread series
3a thread class right-hand 0.469" thread length hexagon head style 0.4375" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
