2a nut thread thread class right-hand nut thread 0.970" stud thread thread length 2.750" overall length 11 nut thread thread quantity per inch color black for phosphate surface or color silver for cadmium cadmium or phosphate surface treated unc nut thread thread series
1a nut thread a thread class 0.380" stud thread thread length 1.880" overall length 20 nut thread a thread quantity per inch unc nut thread a thread series
2a nut thread thread class right-hand nut thread 2.250" stud thread thread length 1.750" overall length 8 stud thread thread quantity per inch 3/32 dia. hole drilled thru, 1/8 in. in from stud end un nut thread thread series