3a thread class right-hand 0.406" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.205" thread length flat countersunk head style 24 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 0.539" thread length fillister head style 0.037" hole diameter 48 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.562" thread length headless (setscrew) head style 20 thread quantity per inch cadmium or zinc surface treated unc thread series
3a nut thread thread class right-hand nut thread 0.326" stud thread thread length 1.300" overall length 18 stud thread thread quantity per inch 0.248 in. min 0.253 in. max dia 0.084 in. min 0.104 in. max wide thd relief on stud end cadmium surface treated shouldered uns stud thread thread series