On 9/19/2013 12:57 PM, Larry wrote: > 8.5 inches. Although, I have always had to shim it up a bit (maybe > 0.25 inch) with washers at the mounting screws to keep the terminal > strip off the shelf. When the terminal strip fails, I replace them withe the pigtail and connectors used in the tailtwister. 73, Roger (K8R)