3a nut thread a thread class left-hand nut thread b 3.500" nut thread a thread length 17.000" overall length 10 nut thread a thread quantity per inch unc nut thread a thread series
3a thread class right-hand 0.276" thread length flat countersunk head style 0.678" grip length 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.400" thread length flat chamfer head style 32 thread quantity per inch head may be knurled at manufacterer option passivate surface treated unc thread series
3a thread class right-hand 6.0mm thread length flat fillister head style 32 thread quantity per inch navy special project oxide surface treated unc thread series
3a thread class right-hand 6.6mm thread length flat countersunk head style 32 thread quantity per inch navy special project passivate surface treated unc thread series
2a thread class right-hand 0.500" thread length hexagon head style 20 thread quantity per inch m/f MS35307-313 passivate surface treated unc thread series