37342 NUT 3/8 -24(Hex) 5/8 Flat

Fits the following Models:
1936 Chief, 1937 Chief, 1938 Chief, 1939 Chief, 1940 Chief, 1941 Chief, 1942 Chief, 1944 Chief, 1945 Chief

1936 Four, 1937 Four, 1938 Four, 1940 Four, 1941 Four, 1942 Four