2a thread class right-hand 2.230" thread length flat chamfer head style 0.249" hole diameter 16 thread quantity per inch circumferential groove 0.090 in. wide 1.000 in. from top of head unc thread series
2a thread class right-hand 0.625" thread length hexagon head style 1.500" grip length 20 thread quantity per inch navy special project unf thread series
3a thread class right-hand 0.481" thread length hexagon head style 0.070" hole diameter 28 thread quantity per inch phosphate surface treated unjf thread series
3a thread class right-hand 0.340" thread length hexagon head style 1.565" grip length 28 thread quantity per inch two holes in shank 90 deg min 92deg max apart cadmium surface treated unjf thread series
3a thread class right-hand 1.062" thread length double hexagon extended washer head style 0.188" grip length 24 thread quantity per inch navy special project 4 grooves across head, 90 deg apart, 0.062 in. nom, w, 0.062 in. nom, deep cadmium surface treated unf thread series
2a thread class left-hand 0.750" thread length hexagon head style 3.000" grip length 28 thread quantity per inch mark head lh for left hand thread cadmium surface treated unf thread series
3a thread class right-hand 0.995" thread length hexagon extended washer head style 20 thread quantity per inch navy special project cadmium surface treated unf thread series
3a thread class right-hand 0.438" thread length hexagon head style 0.046" hole diameter 0.274" grip length 32 thread quantity per inch unf thread series
3a thread class right-hand 0.953" thread length hexagon head style 0.070" hole diameter 0.562" grip length 18 thread quantity per inch unf thread series
3a thread class right-hand 0.468" thread length hexagon head style 3.250" grip length 18 thread quantity per inch cadmium threads surface treated unf thread series
