3a thread class right-hand 0.710" thread length hexagon head style 3.990" grip length 20 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.481" thread length hexagon head style 0.750" grip length 32 thread quantity per inch tensile strength at room temperature passivate surface treated unf thread series
2a thread class right-hand 0.310" thread length fillister head style 32 thread quantity per inch navy special project passivate surface treated unc thread series
2a thread class right-hand 0.310" thread length fillister head style 32 thread quantity per inch navy special project passivate surface treated unc thread series
3a thread class right-hand 0.251" thread length flat countersunk head style 0.302" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
2a thread class right-hand 2.750" thread length hexagon head style 0.375" grip length 12 thread quantity per inch point on thd end of bolt 0.375 in. lg by 1.375 dia unf thread series