2a thread class right-hand 0.157" thread length pan head style 32 thread quantity per inch zinc screw surface treated surface treatment per mil-std-171 finish 1.9.2.3 except thickness 0.0003 in. unc thread series
2a thread class right-hand 0.500" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 0.200" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 0.438" thread length flat countersunk head style 56 thread quantity per inch passivate screw surface treated m/f MS51959-6 unc thread series
2a thread class right-hand 0.750" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated m/f MS51959-19 unc thread series
2a thread class right-hand 0.312" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated m/f MS51959-27 unc thread series
2a thread class right-hand 0.313" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 0.512" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 0.313" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series