3a thread class right-hand 0.939" grip length 32 thread quantity per inch 156000 single pounds per square inch shear strength nickel or cadmium surface treated unjf thread series
3a thread class right-hand 0.650" thread length flat countersunk head style 1.552" grip length 20 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.400" thread length dished hexagon head style 2.990" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.553" thread length dished hexagon head style 0.615" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
Used on sturgeon class ssn (637). 2a nut thread thread class right-hand nut thread 0.930" stud thread thread length 2.490" overall length 11 nut thread thread quantity per inch 125000 psi to 145000 psi tensile unc nut thread thread series
3a thread class right-hand 0.641" thread length dished hexagon head style 0.740" grip length 16 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.990" thread length hexagon head style 4.065" grip length 24 thread quantity per inch cadmium surface treated unjf thread series