3a thread class right-hand 0.427" thread length flat countersunk head style 1.427" grip length 20 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.437" thread length flat countersunk head style 0.177" grip length 28 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.248" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjc thread series
2a thread class right-hand 2.275" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unc thread series
3a thread class right-hand 0.562" thread length hexagon head style 32 thread quantity per inch cadmium screw surface treated magnetic inspection required unc thread series
3a thread class right-hand 0.813" thread length tee no. 3 head style 18 thread quantity per inch unthreaded part of shank 0.748 in. to 0.749 in. dia unf thread series