flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.075" grip length anodize or oxide film stem surface treated
3a thread class right-hand 0.646" thread length dished hexagon head style 1.062" grip length 20 thread quantity per inch retaining element in shank passivate surface treated unjf thread series
3a thread class right-hand 0.431" thread length crowned hexagon head style 1.812" grip length 20 thread quantity per inch retaining element in shank cadmium surface treated unjf thread series
3a thread class right-hand 0.169" thread length pan head style 40 thread quantity per inch epoxy head only; gray epoxy enamel fastener portion unc thread series
3a thread class right-hand flush countersunk head style 1.189" grip length 32 thread quantity per inch 108000 single pounds per square inch shear strength cadmium surface treated unjf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 1.219" grip length 3450 single pounds per square inch shear strength cadmium locking ring surface treated
3a thread class right-hand 0.298" thread length dished hexagon head style 0.178" grip length 32 thread quantity per inch cadmium surface treated unjf thread series