3a thread class right-hand 0.303" thread length flat countersunk head style 56 thread quantity per inch passivate screw surface treated unjc thread series
3a thread class right-hand flush countersunk head style 0.500" grip length 9620 double pounds per square inch shear strength anodize surface treated unjf thread series
2a thread class right-hand 0.200" thread length flat fillister head style 40 thread quantity per inch navy special project passivate surface treated unc thread series
3a thread class right-hand 0.625" thread length flat chamfer head style 56 thread quantity per inch navy special project passivate surface treated unrc thread series
3a thread class right-hand flush countersunk head style 0.745" grip length 12260 double pounds per square inch shear strength top surface of head shall be powder blasted, with color yellow on thread end. passivate surface treated unjf thread series