3a thread class right-hand 0.865" thread length double hexagon w/hole head style 24 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.740" thread length double hexagon extended washer head style 0.128" grip length 28 thread quantity per inch unjf thread series
3a thread class right-hand 0.305" thread length flat chamfer head style 0.190" hole diameter 20 thread quantity per inch navy special project unc thread series
3a thread class right-hand 0.480" thread length round w/wrench flats head style 28 thread quantity per inch 2 holes 0.130 in. dia thru head equidistant parallel to center line of fastener nickel surface treated unjf thread series
