This Dual Terminal block comes in two different stud sizes M6 and M8. It is the the perfect easy solution for installing new trolling motors when trying to connect the battery wires and trolling motor power wires together.This block has a plastic cover with a divider so that the wires on each side can not come into contact with each other. Can also be used for extending battery charger wire leads so you don&';t have to cut and splice wires. Comes with 2 stainless steel mounting screws.