8628-6-Z Early crankcase nuts

These Colony early crankcase nuts are essential for anyone working on pre-war Harley-Davidson engines. They are faithful reproductions of the zinc-plated nuts used on 1911 to 1929 V-Twins, 1930 to 1934 singles, and 1929 to 1936 45" SV crankcases. These nuts feature a 1/4-24 thread pitch, matching the original factory specifications perfectly. In the shop, we recommend using the specialized installation tool to ensure these nuts are tightened correctly without marring the finish. This set is sold as a pack of six, providing the authentic look and mechanical integrity needed for a high-level vintage restoration. They are a perfect choice for keeping your antique crankcase period-correct.