3a thread class right-hand 0.875" thread length knurled no. 5 head style 11 thread quantity per inch 32 microinch finish on shoulder oxide surface treated unc thread series
2a thread class right-hand 0.200" thread length flat fillister head style 40 thread quantity per inch navy special project passivate surface treated unc thread series
2a thread class right-hand 0.250" thread length flat fillister head style 32 thread quantity per inch navy special project undercut btwn shoulder passivate surface treated unc thread series
Used on spec item. 2a thread class right-hand 0.219" thread length flat chamfer head style 32 thread quantity per inch passivate surface treated unf thread series