3a thread class right-hand 0.438" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unc thread series
3a thread class right-hand 0.434" thread length dished hexagon head style 0.070" hole diameter 20 thread quantity per inch cadmium surface treated unc thread series
3a thread class right-hand 1.090" thread length hexagon head style 0.062" hole diameter 20 thread quantity per inch cadmium surface treated unc thread series
3a thread class right-hand 0.531" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.415" grip length 75000 single pounds per square inch shear strength cadmium surface treated
2a thread class right-hand 1.188" thread length hexagon head style 20 thread quantity per inch furnished w/unthrd portion below 3rd shoulder has 9/64 in. lg tapered from 1/2 in. dia to 7/16 in. dia; 3rd shoulder dia 0.500 in. nom; 3rd shoulder lg 0.031 in. nom cadmium or zinc surface treated unf thread series
2a thread class right-hand 0.735" thread length flat chamfer head style 0.070" hole diameter 18 thread quantity per inch head is eccentric with groove cadmium surface treated unf thread series
