3a nut thread thread class right-hand nut thread 0.670" stud thread thread length 1.880" overall length 28 nut thread thread quantity per inch shoulder is d-shaped with center to flat 0.245-0.255 in. shouldered unjf nut thread thread series
3a thread class right-hand 0.323" thread length flat countersunk head style 0.678" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.378" thread length flat countersunk head style 0.302" grip length 28 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.429" thread length dished hexagon head style 1.178" grip length 24 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.794" thread length double hexagon extended washer head style 0.339" grip length 24 thread quantity per inch unjf thread series
3a thread class right-hand 0.710" thread length dished hexagon head style 0.802" grip length 20 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.864" thread length double hexagon extended washer head style 0.378" grip length 24 thread quantity per inch unjf thread series
3a thread class right-hand 0.740" thread length double hexagon extended washer head style 0.065" grip length 28 thread quantity per inch unjf thread series