3a thread class right-hand 0.425" thread length dished hexagon head style 28 thread quantity per inch item is furnished with tab cres per mil-s-5059 passivate surface treated unjf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style "o" ring material meets requirements of mil-p-5315 anodize surface treated