2a thread class right-hand 0.094" thread length flat countersunk head style 64 thread quantity per inch cadmium screw surface treated unf thread series
Used on spec item. 2a nut thread thread class right-hand nut thread 0.562" nut thread thread length 16 nut thread thread quantity per inch welding unc nut thread thread series
3a thread class right-hand 0.475" thread length hexagon head style 1.802" grip length 18 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.886" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unjf thread series
3a thread class right-hand 0.700" thread length double hexagon w/hole head style 24 thread quantity per inch one hole in undercut 0.1255 in. dia max unjf thread series