3a thread class right-hand 0.251" thread length flat countersunk head style 1.490" grip length 32 thread quantity per inch cadmium surface treated unf thread series
3a nut thread thread class right-hand nut thread 1.000" nut thread thread length 2.625" overall length 12 stud thread thread quantity per inch stud thread end drilled 0.438 in.from end to center of hole 0.149 in.dia 0.085 in. deep for nylok insert unf nut thread thread series