Used on tf33-p7a. 3a thread class right-hand 1.375" thread length square extended washer head style 20 thread quantity per inch head drilled depth 0.190" unjf thread series
3a thread class right-hand 0.469" thread length hexagon head style 1.296" grip length 28 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.969" thread length hexagon head style 0.740" grip length 16 thread quantity per inch passivate surface treated unf thread series