3a thread class right-hand 0.576" thread length knurled no. 1 head style 13 thread quantity per inch threads undercut for relief 0.154 in. wide max., 0.406 in. nom. dia. zinc surface treated unrc thread series
2a thread class right-hand 0.224" thread length flat chamfer head style 40 thread quantity per inch navy special project passivate surface treated unc thread series
2a thread class right-hand 0.010" thread length fillister head style 56 thread quantity per inch 0.020 in. w by 0.062 in. lg undercut passivate surface treated unc thread series
2a thread class right-hand 0.365" thread length modified pan head style 28 thread quantity per inch undercut for thread relief, 0.191 in. min. dia., 0.195 in. max. dia. x 0.080 in. long unf thread series
2a thread class right-hand 0.136" thread length pan head style 32 thread quantity per inch undercut for thread relief, 0.140 in. dia. x 0.062 in. long unf thread series
2a thread class right-hand 0.180" thread length fillister head style 32 thread quantity per inch undercut 0.500 in. w, 0.141 in min dia unf thread series
