2a thread class right-hand 0.151" thread length hexagon extended washer head style 40 thread quantity per inch passivate surface treated unc thread series
2a thread class right-hand 0.126" thread length hexagon extended washer head style 40 thread quantity per inch shoulder passivate surface treated unc thread series
2a thread class right-hand 0.126" thread length hexagon extended washer head style 40 thread quantity per inch navy special project shoulder passivate surface treated unc thread series
2a thread class right-hand 0.150" thread length flat fillister head style 40 thread quantity per inch undercut under shoulder passivate surface treated unc thread series
2a thread class right-hand 0.280" thread length pan no. 2 head style 56 thread quantity per inch undercut shoulder .040 passivate surface treated unc thread series
3a thread class right-hand 0.453" thread length flat countersunk head style 20 thread quantity per inch cadmium or chromate surface treated unjf thread series