Used on b1-b acft. 3a thread class right-hand flush countersunk head style 24 thread quantity per inch 95000 double pounds per square inch shear strength bolt, tapered shank unjf thread series
Used on b1-b acft. 3a thread class right-hand straight pan head style 0.432" grip length 32 thread quantity per inch 5280 double pounds per square inch shear strength unjc thread series
Used on h-60 blade fold hinge assembly. 3a thread class right-hand 0.854" thread length 12 thread quantity per inch navy special project finish-silver plate per ams 2410; tensile strength 75, 000 lbs plain unjf thread series