3a thread class right-hand 0.490" thread length headless (setscrew) head style 28 thread quantity per inch slot on perimeter parallel to longitudinal axis 0.0615 in. min 0.0635 in. max w by 0.040 in. nom deep cadmium surface treated unf thread series
2a thread class right-hand 0.160" thread length fillister head style 0.046" hole diameter 32 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.632" thread length headless (setscrew) head style 28 thread quantity per inch 0.195 in. min, 0.200 in max dia unthd portion, 0.210 in. min, 0.230 in. max lg unthd portion oxide surface treated unf thread series
Used on nsn 2320-01-097-0260 hemtt (heavy expanded mobility tactical truck). 2a thread class right-hand 3.250" thread length square head style 10 thread quantity per inch phosphate surface treated unc thread series
3a thread class right-hand 0.340" thread length hexagon head style 0.046" hole diameter 32 thread quantity per inch passivate surface treated unf thread series
2a thread class right-hand 0.375" thread length headless (setscrew) head style 20 thread quantity per inch soft metal locking cadmium surface treated unc thread series
3a thread class right-hand 0.500" thread length headless (setscrew) head style 32 thread quantity per inch cadmium or chromate surface treated unf thread series
