Steel pin, cadmium plated, grip 0.1885 in. Min, 0.1895 in. Max dia, 0.188 in. Max lg, thd 0.190-32unjf-3a, 0.325 in. Min thd lg, head 0.367 in. Dia, hex. Socket bottom of shank 0.080 in. W across flats, cres collar, cadmium plated, thd 0.190-32unjf-3b, aluminum washer, anodized, 0.340 in. Od, 0.010 in. Thk