2a thread class right-hand 1.375" thread length hexagon head style 12 thread quantity per inch screw, cap, hexagon head zinc surface treated unc thread series
2a thread class right-hand 1.250" thread length hexagon head style 0.092" hole diameter 13 thread quantity per inch cadmium fastener surface treated unc thread series
3a thread class right-hand 0.853" thread length dished hexagon head style 20 thread quantity per inch also furnished with pin cadmium fastener surface treated unjf thread series
2a thread class right-hand 0.485" thread length bevel-conical head style 0.046" hole diameter 28 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.363" thread length flat countersunk head style 0.302" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
