flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.106" grip length 300 single pounds per square inch shear strength anodize or oxide film surface treated
3a thread class right-hand 0.318" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 0.125" thread length headless (setscrew) head style 32 thread quantity per inch cadmium or chromate surface treated unc thread series
3a thread class right-hand 0.443" thread length flat countersunk head style 0.076" hole diameter 0.490" grip length 28 thread quantity per inch unjf thread series
3a thread class right-hand 0.425" thread length dished hexagon head style 0.500" grip length 28 thread quantity per inch cadmium surface treated unf thread series