3a thread class right-hand 1.047" thread length flat fillister head style 0.046" hole diameter 24 thread quantity per inch passivate surface treated unjc thread series
3a thread class right-hand 0.343" thread length dished hexagon head style 20 thread quantity per inch 0.363" nom grip length cadmium surface treated unjf thread series
2a thread class right-hand 0.670" thread length pan no. 2 head style 40 thread quantity per inch passivate screw surface treated installed in head on bearing surface is an o-ring, silicone rubber, composition a unc thread series
2a thread class right-hand 0.368" thread length pan no. 2 head style 40 thread quantity per inch passivate screw surface treated installed in head is 0-ring, silicone rubber, composition a unc thread series