3a thread class right-hand 1.628" thread length pan head style 32 thread quantity per inch navy special project cadmium screw surface treated unjc thread series
3a thread class right-hand 1.131" thread length hexagon head style 2.802" grip length 24 thread quantity per inch nickel surface treated unjf thread series
3a thread class right-hand flush countersunk head style 0.689" grip length 28 thread quantity per inch 156000 single pounds per square inch shear strength nickel surface treated unjf thread series
Used on coupling,shaft,flexible,nsn 3010-01-136-4871 on fairbanks morse 8 cylinder diesel engines model 38d8 1/8 onboard 140 foot coast guard vessels. 2a thread class right-hand dee chamfer head style 12 thread quantity per inch unf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.057" grip length cadmium sleeve or aluminum sleeve surface treated
3a thread class right-hand 0.378" thread length flat countersunk head style 0.365" grip length 28 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.337" thread length flat countersunk head style 0.115" grip length 32 thread quantity per inch passivate surface treated unjf thread series
2a thread class right-hand 0.071" thread length flat countersunk head style 56 thread quantity per inch navy special project passivate screw surface treated unc thread series