2a nut thread thread class right-hand nut thread 0.620" stud thread thread length 3.695" overall length 20 nut thread thread quantity per inch 0.090 in. wide 16 pitch straight knurl 0.635 in. min dia located against largest shoulder on stud end shouldered unf nut thread thread series
3a nut thread thread class right-hand nut thread 0.281" nut thread thread length 2.312" overall length 24 nut thread thread quantity per inch dry film lubricate, electro film process shouldered unc nut thread thread series
3a nut thread thread class right-hand nut thread 0.520" stud thread thread length 2.870" overall length 28 nut thread thread quantity per inch one hole in shoulder 0.070 dia thru csk to 0.090 in min silver surface treated shouldered unf nut thread thread series
2a nut thread thread class left-hand nut thread 0.969" stud thread thread length 16 nut thread thread quantity per inch stamp l for lh thds on nut end, nut end has 0.156 in. length 60.0 deg chamfer unf nut thread thread series
2a nut thread thread class right-hand nut thread 0.654" nut thread thread length 16 nut thread thread quantity per inch thread relief cut at both ends. both ends drilled for lubrication unf nut thread thread series
3a nut thread thread class right-hand nut thread 0.211" nut thread thread length 2.500" overall length 28 nut thread thread quantity per inch 0.375 in. lg 0.245 in. min 0.255 in. max dia wrenching flat located 1.062 in. from stud ends on two opposite sides cadmium surface treated shouldered unf nut thread thread series