flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.631" grip length 20000 single pounds per square inch shear strength anodize surface treated
3a thread class right-hand 0.143" thread length flat countersunk head style 40 thread quantity per inch cadmium screw surface treated unjc thread series
3a thread class right-hand 1.750" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 1.750" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 1.188" thread length round extended washer head style 40 thread quantity per inch cadmium screw surface treated unc thread series