Not to step on anyones toes but myself would look a little deeper. According to a friend of mine, he says the that the Electrical code says that other precautions must be met. The terminals and splicing conductors shall be approved for the material of the joined conductors. Conductors of dissimilar metals shall not be joined in a terminal or splicing connector where physical contact occurs. IE. Aluminum and copper. Unless a listed device is used. Check with your local electrical store for such item.