3a thread class right-hand crowned hexagon head style 28 thread quantity per inch ldistance from head largest bearing surface to shank hole center 2.090 in. min to 2.110 in. max; shank unthreaded hole diameter 0.078 in. min to 0.083 in. max; angle of domed head 88 degrees min to 92 degrees max unjf thread series
3a thread class right-hand 0.589" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjc thread series
3a thread class right-hand 0.412" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjc thread series
3a thread class right-hand 0.488" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjc thread series
3a thread class right-hand 0.346" thread length pan head style 32 thread quantity per inch cadmium screw surface treated furnished with boot type nylon washer 0.500 in. o.d., head unf thread series
3a thread class right-hand 0.260" grip length 32 thread quantity per inch 108000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 0.198" grip length 32 thread quantity per inch 108000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 0.135" grip length 32 thread quantity per inch 108000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 0.193" grip length 28 thread quantity per inch 95000 single pounds per square inch shear strength furnished with one collar cadmium surface treated unjf thread series
3a thread class right-hand 1.193" grip length 20 thread quantity per inch 125000 single pounds per square inch shear strength passivate surface treated unjf thread series
Used on aircraft, b-1b;aircraft, sof ( ac-130h, mc-130h, ec-130e, hc-130);aircraft, galaxy c-5. 3a thread class right-hand 1.650" grip length 28 thread quantity per inch 95000 single pounds per square inch shear strength unjf thread series
3a thread class right-hand 0.251" thread length flat countersunk head style 0.552" grip length 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.491" thread length double hexagon head style 0.865" grip length 24 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.420" thread length flat chamfer head style 40 thread quantity per inch color black oxide surface treated unc thread series
Used on cruise missile. 3a thread class right-hand 0.477" thread length flat countersunk head style 28 thread quantity per inch three slots 0.040 in. wide by 0.029 in. deep along the longitudinal axis passivate surface treated unf thread series
3a thread class right-hand 0.413" thread length dished hexagon head style 2.615" grip length 24 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.345" thread length dished hexagon head style 4.490" grip length 28 thread quantity per inch passivate surface treated unjf thread series
