The male end measures 1.5cm (15mm) but only .5cm (5mm) is available to connect with the mounting bolt. The longer mounting bolt which was stripped measures 3cm (30mm). The front Sheldon Fender Nut will only allow for a little less than 1.5cm (15mm). So, I suppose I'm looking for a male end that measures approximately 3cm (30mm). Does that help you think of anything?