3a thread class right-hand 1.491" thread length hexagon head style 0.984" grip length 24 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.353" thread length flat countersunk head style 0.428" grip length 32 thread quantity per inch internal drive ribbed cadmium or chromate surface treated unjf thread series
3a thread class right-hand 0.827" thread length flat countersunk head style 32 thread quantity per inch navy special project chromate surface treated unjf thread series
2a thread class right-hand 1.880" thread length 20 thread quantity per inch furnished with second angle bend cadmium surface treated acute angle bend unc thread series
2a thread class right-hand 0.313" thread length pan no. 2 head style 32 thread quantity per inch navy special project passivate screw surface treated unc thread series
Used on spec item. 2a thread class right-hand 0.874" thread length hexagon head style 18 thread quantity per inch phosphate surface treated unc thread series
