3a nut thread thread class right-hand nut thread 0.562" stud thread thread length 1.688" overall length 16 stud thread thread quantity per inch 0.047 in. by 45.0 degree chamfer on both ends uns stud thread thread series
3a thread class right-hand 1.188" thread length hexagon head style 11 thread quantity per inch point end drilled 5/16 in. dia. by 0.556 in. deep, od of point chamfered, 1/2 in. od by 4-1/8 in. lg from thd to point unc thread series
3a thread class right-hand 1.563" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
