flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.313" grip length 596 single pounds per square inch shear strength anodize or chromate surface treated
3a thread class right-hand 0.630" 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 0.630" grip length 24 thread quantity per inch 125000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 0.505" grip length 24 thread quantity per inch 125000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 0.569" thread length dished hexagon head style 4.490" grip length 18 thread quantity per inch cadmium surface treated unjf thread series
2a thread class right-hand 0.310" thread length knurled no. 1 head style 32 thread quantity per inch one hole threaded 4-40unc-2b by 0.230 deep located in center of head passivate surface treated unf thread series
2a thread class right-hand 0.102" thread length flat countersunk head style 40 thread quantity per inch cadmium screw surface treated unc thread series