3a thread class right-hand 0.528" thread length hexagon head style 1.115" grip length 20 thread quantity per inch one drilled hole in shank cadmium surface treated unjf thread series
3a thread class right-hand 0.323" thread length hexagon head style 0.615" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.370" thread length hexagon head style 0.240" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
Used on b-1b acft. 3a thread class right-hand flush countersunk head style 0.683" grip length 20 thread quantity per inch passivate surface treated unjf thread series
Used on b-1b acft. 3a thread class right-hand 0.245" grip length 32 thread quantity per inch 6130 double pounds per square inch shear strength unjf thread series
Used on b-1b acft. 3a thread class right-hand flush countersunk head style 0.837" grip length 20 thread quantity per inch passivate surface treated unjf thread series
Used on B-1B. flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 26000 single pounds per square inch shear strength rivet anodize or chromate surface treated
Used on b-1b acft. 3a thread class right-hand flush countersunk head style 1.433" grip length 20 thread quantity per inch passivate surface treated unjf thread series