3a thread class right-hand 0.370" thread length hexagon head style 0.083" hole diameter 28 thread quantity per inch no.2 combination center drill, CSK58-62 degrees to 0.150-0.170", optional, both ends unjf thread series
2a thread class right-hand 0.180" thread length hexagon head style 28 thread quantity per inch threaded concetric hole in head 0.164-32 unc 2b by 0.125 in. min deep. 0.161 in. dia concentric hole in threaded end 0.400 in lg nickel surface treated unf thread series
3a thread class right-hand 0.402" thread length double hexagon extended washer head style 32 thread quantity per inch nickel surface treated unf thread series
3a thread class right-hand 0.625" thread length double hexagon w/hole head style 32 thread quantity per inch solid film lube with everlube 620or lube-lok 5396 per HS248 ty A1 cl 43 unjf thread series
3a thread class right-hand 0.625" thread length double hexagon w/hole head style 32 thread quantity per inch navy special project cadmium surface treated unf thread series