Excellent thread definition. Quality chrome diecast. (Retail Note - threads fit all original and QUALITY replacement electrical ignition switches. There are numerous cheapo switches with incorrect smaller thread size on the market.)

OEM Thickness stamped steel. Exact fit, superior workmanship. Coil bracket includes correct shouldered, head and tip retaining screw as original. Each bracket has correct angle to ensure proper fitment, clear zinc plated. All application are from pre-1972 GM parts manuals. Later GM books add older applications due to superseded part numbers. GM Part #: 1970344.