3a thread class right-hand flush countersunk head style 0.380" grip length 28 thread quantity per inch 95000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 0.815" thread length dished hexagon head style 2.990" grip length 18 thread quantity per inch cadmium surface treated unjf thread series
2a thread class right-hand 0.283" thread length pan head style 32 thread quantity per inch boot type washer to be of nylon; 0.500 in. o.d; 0.179 in. high unf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 41000 single pounds per square inch shear strength aluminum alloy 7050 anodize or chromate surface treated
