Used on engine model f-104. 3a thread class right-hand 0.288" thread length double hexagon extended washer head style 28 thread quantity per inch unjf thread series
2a thread class right-hand hexagon head style 18 thread quantity per inch split hexical ring washer furnished cadmium or zinc surface treated unc thread series
2a thread class right-hand 1.000" thread length double hexagon extended washer head style 0.625" grip length 24 thread quantity per inch unc thread series
2a thread class right-hand 1.389" thread length crowned hexagon head style 18 thread quantity per inch color black oxide surface treated unc thread series
2a thread class right-hand 0.874" thread length hexagon head style 0.060" hole diameter 18 thread quantity per inch zinc surface treated unc thread series
3a thread class right-hand 0.990" thread length double hexagon extended washer head style 0.690" grip length 24 thread quantity per inch unjf thread series
3a thread class right-hand 1.891" thread length double hexagon extended washer head style 13 thread quantity per inch cadmium surface treated unc thread series
3a thread class right-hand 0.620" thread length hexagon head style 0.042" hole diameter 0.560" grip length 32 thread quantity per inch unjf thread series
3a thread class right-hand 0.632" thread length hexagon head style 0.060" hole diameter 0.088" grip length 24 thread quantity per inch unjf thread series
3a thread class right-hand 0.630" thread length hexagon head style 0.047" hole diameter 1.060" grip length 32 thread quantity per inch unjf thread series
3a thread class right-hand 1.393" thread length hexagon head style 0.070" hole diameter 20 thread quantity per inch cadmium surface treated unjf thread series