2a thread class right-hand 0.188" thread length flat chamfer head style 40 thread quantity per inch head slotted 0.031 in. w by 0.031 in. d with 0.010 in. by 45 deg chamfer nickel surface treated unf thread series
2a thread class right-hand 1.251" thread length fillister head style 0.046" hole diameter 32 thread quantity per inch passivate screw surface treated unf thread series
2a thread class right-hand 0.342" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.288" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated color gray fed std 595 no. 36231 unc thread series
3a thread class right-hand 0.381" thread length flat countersunk head style 56 thread quantity per inch color gray fed std 595 no. 36231 unc thread series
3a thread class right-hand 0.422" thread length flat chamfer head style 0.036" hole diameter 32 thread quantity per inch passivate surface treated unjc thread series