3a thread class right-hand 0.310" thread length headless (setscrew) head style 56 thread quantity per inch 0.093 in. nom groove 45 degrees from slotted drive; 0.190-56uns-3b threads located 0.230 in. distance from top passivate surface treated uns thread series
3a thread class right-hand 0.085" thread length pan no. 2 head style 80 thread quantity per inch navy special project passivate surface treated unf thread series
3a thread class right-hand 0.375" thread length headless (setscrew) head style 28 thread quantity per inch hole drilled in point 0.065 in. min. by 0.070 in.max. dia., 0.074 in deep passivate surface treated unf thread series
3a thread class left-hand 2.750" thread length headless (setscrew) head style 0.125" hole diameter 20 thread quantity per inch passivate surface treated unf thread series
Used on spec item. 3a thread class right-hand 1.480" thread length headless (setscrew) head style 24 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 0.240" thread length headless (setscrew) head style 32 thread quantity per inch passivate surface treated unjc thread series
2a thread class right-hand 0.188" thread length headless (setscrew) head style 20 thread quantity per inch oxide fastener surface treated unc thread series