Attach linkage to 0.282" dia., extended shafts Stromberg 97's, 9 Super 7 and Compatible with Ford/Holley 94 carbs Use with 3/16" (10-32) heims and linkage Overall Length: 1.803" Premium heavy-duty aluminum construction for consistent performance and reliability Throttle arms to attach linkage to the 0.282" dia., extended shafts on Stromberg 97's, 9 Super 7 andCompatible with Ford/Holley 94 carbs. Use with 3/16" (10-32) heims and linkage.