2a thread class right-hand 0.250" thread length flat chamfer head style 32 thread quantity per inch red enamel color no. 21136 of fed-std-595 enamel head surface treated unc thread series
2a thread class right-hand 0.250" thread length hexagon head style 40 thread quantity per inch anodize surface treated counterbore threaded unc thread series
2a thread class right-hand 1.125" thread length 0.756" hole diameter 18 thread quantity per inch do not paint holes or threads cadmium surface treated unf thread series