3a thread class right-hand 0.506" thread length flat countersunk head style 0.428" grip length 24 thread quantity per inch tapped hole in head 0.1380-32, unjc-3b threads. distance from top of head to injection port 0.250 inch. injection port 0.120 in. lg, 0.060 in. wide passivate surface treated unjf thread series
3a thread class right-hand 0.320" thread length dished hexagon head style 0.178" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.314" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unjc thread series
3a thread class right-hand 1.443" grip length 32 thread quantity per inch 125000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 1.439" thread length 4.020" overall length 18 thread quantity per inch concentric thread hole 0.250-28 unjf 2b along the longitudinal centerline in thread end round, closed unjf thread series
za thread class right-hand 0.495" thread length hexagon extended washer head style 16 thread quantity per inch zinc or cadmium surface treated unc thread series
