3a thread class right-hand 0.398" thread length pan head style 28 thread quantity per inch navy special project passivate surface treated unjf thread series
Used on spec item. 3a thread class right-hand 0.921" thread length hexagon head style 0.070" hole diameter 0.922" grip length 18 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 0.326" thread length double hexagon head style 1.552" grip length 24 thread quantity per inch cadmium surface treated unjf thread series