3a thread class right-hand 0.100" thread length flat chamfer head style 56 thread quantity per inch navy special project thread relief 0.040 lg by 0.075 dia unf thread series
2a thread class right-hand 0.090" thread length flat chamfer head style 64 thread quantity per inch undercut 0.028 in. min, 0.034 in. max lg; 0.069 in. min, 0.075 in. max dia beneath bearing surface of head passivate surface treated unf thread series
2a thread class right-hand 0.300" thread length hexagon head style 32 thread quantity per inch furnished with two hex nuts 0.125 in. long passivate surface treated unc thread series
3a thread class right-hand 0.130" thread length flat chamfer head style 32 thread quantity per inch unthreaded area at end of thread 0.800 in. long unrf thread series
3a thread class right-hand 0.875" thread length flat chamfer head style 11 thread quantity per inch navy special project top of head furnished with six 0.250 in. wide notches unc thread series
2a thread class right-hand 0.190" thread length fillister head style 32 thread quantity per inch undercut optional under head of screw passivate surface treated unc thread series
2a thread class right-hand 0.190" thread length fillister head style 32 thread quantity per inch undercut optional passivate surface treated unc thread series
3a thread class right-hand 0.531" thread length flat countersunk undercut head style 24 thread quantity per inch screw assembled with o ring on grip passivate surface treated unjf thread series
