3a nut thread thread class right-hand nut thread 0.620" stud thread thread length 1.690" overall length 18 nut thread thread quantity per inch both ends 0.031 in. by 45.0 deg chamfer. identification color red unc nut thread thread series
3a nut thread thread class right-hand nut thread 0.938" stud thread thread length 2.875" overall length 10 stud thread thread quantity per inch thread of stud end tapered 0.6910 in. min 0.6940 in. max pitch dia of major taper, 0.6820 in. min 0.6850 in. max pitch dia minor taper cadmium surface treated uns stud thread thread series
3a nut thread thread class right-hand nut thread 0.625" nut thread thread length 3.615" overall length 18 stud thread thread quantity per inch nut end chamfered 0.047 in. by 45 deg stud end chamfered 0.062 in. by 45 deg 0.279 in. min 0.289 in. max dia of unthreaded portion cadmium surface treated unc stud thread thread series