3a thread class right-hand 0.313" thread length dished hexagon head style 2.115" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.800" thread length double hexagon w/hole head style 0.055" hole diameter 1.740" grip length 18 thread quantity per inch navy special project cadmium surface treated unjf thread series
3a thread class right-hand 0.267" thread length double hexagon head style 0.927" grip length 28 thread quantity per inch nickel surface treated unjf thread series