D3a thread class right-hand flush countersunk head style 0.500" grip length 32 thread quantity per inch 6130 double pounds per square inch shear strength unjf thread series
3a thread class right-hand countersunk (tubular) head style 0.365" grip length 28 thread quantity per inch 125000 single pounds per square inch shear strength cadmium expander surface treated unjf thread series
3a thread class right-hand flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.428" grip length 28 thread quantity per inch 125000 single pounds per square inch shear strength cadmium expander surface treated unjf thread series
3a thread class right-hand 0.410" thread length flat countersunk head style 0.625" grip length 28 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.413" thread length dished hexagon head style 1.490" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.720" thread length dished hexagon head style 3.115" grip length 20 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.428" thread length dished hexagon head style 2.865" grip length 20 thread quantity per inch cadmium surface treated unjf thread series
