2a stud thread thread class right-hand stud thread 2.250" overall length 11 stud thread thread quantity per inch item is allow 20 material unc stud thread thread series
2a thread class right-hand 0.750" thread length flat chamfer head style 16 thread quantity per inch screw, cap, selflocking item is self locking unc thread series
3a thread class right-hand 0.750" thread length flat chamfer head style 20 thread quantity per inch screw, cap, selflocking item is self locking; fastener conforms to ff-s-86, ty 6; description is 1/4-20 unc-3a x 1 3/4 unc thread series
3a nut thread b thread class right-hand nut thread a 0.625" nut thread b thread length 1.990" overall length stud-straight, 0.3750-16 x 0.375-24, 2.0 long, cad plated, standard pitch diameter. cadmium surface treated unjf nut thread b thread series