3a thread class right-hand 1.000" thread length hexagon head style 10 thread quantity per inch navy special project undercut between head unc thread series
3a thread class right-hand 0.388" thread length hexagon head style 28 thread quantity per inch navy special project cadmium surface treated unf thread series
2a thread class right-hand 0.687" thread length hexagon head style 20 thread quantity per inch 3/64 in. radius under-cut at shoulder 1/32 in. by 45 deg chamfer at thd end zinc surface treated unf thread series
2a thread class right-hand 0.500" thread length hexagon head style 20 thread quantity per inch 0.031 in. w by 0.062 in. deep under-cut under shoulder, 0.062 in. by 45.0 deg chamfer at thd end cadmium surface treated unf thread series
2a thread class right-hand 0.438" thread length hexagon head style 24 thread quantity per inch washer faced bearing surface on head; thd relief 1/32 in. w; no. 63 surface finish on shoulder cadmium or zinc surface treated unf thread series
3a thread class right-hand 0.688" thread length hexagon head style 20 thread quantity per inch undercut between shoulder cadmium or zinc surface treated unf thread series
2a thread class right-hand 0.469" thread length hexagon head style 18 thread quantity per inch undercut between shoulder cadmium surface treated unc thread series
2a thread class right-hand 0.906" thread length hexagon head style 13 thread quantity per inch 0.0156 in. by 45 deg chamfer at shoulder, 35 deg chamfer at thd end cadmium or zinc surface treated unc thread series
3a thread class right-hand 0.300" thread length round w/wrench flats head style 20 thread quantity per inch cadmium or chromium surface treated unf thread series
3a thread class right-hand 0.624" thread length hexagon head style 20 thread quantity per inch cad plate 0.00015 in. max thk cadmium surface treated unf thread series
