3a thread class right-hand 0.272" thread length double hexagon w/hole head style 32 thread quantity per inch nickel or phosphate surface treated unf thread series
3a thread class right-hand 0.573" thread length double hexagon w/hole head style 24 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.516" thread length dished hexagon head style 1.365" grip length 20 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand flush countersunk head style 0.678" grip length 156000 single pounds per square inch shear strength nickel surface treated unjf thread series
3a thread class right-hand 0.500" thread length flat countersunk head style 56 thread quantity per inch passivate screw surface treated unjc thread series
2a thread class right-hand 0.226" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated color gray fed std 595 no. 36231 unc thread series
3a thread class right-hand 0.651" thread length flat chamfer head style 24 thread quantity per inch cadmium fastener surface treated unrf thread series