3a thread class right-hand flush countersunk head style 0.439" grip length 108000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 0.276" thread length flat countersunk head style 0.740" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
Used on c-130j aircraft. 3a thread class right-hand 0.840" thread length double hexagon w/hole head style 0.088" grip length 24 thread quantity per inch unjf thread series
3a thread class right-hand 0.303" thread length double hexagon extended washer head style 0.072" grip length 32 thread quantity per inch unjf thread series