3a thread class right-hand 1.307" grip length 14600 double pounds per square inch shear strength grit blast top of head, with color light blue on thread end. unjf thread series
3b thread class right-hand 0.530" thread length 24 thread quantity per inch dri-film lube per mil-l-46010 type 1 in thread area only cadmium surface treated flange unjf thread series
3a thread class right-hand 3.047" thread length double hexagon extended washer head style 9 thread quantity per inch cadmium surface treated unc thread series