Kent , They don't state if the bolts go all the way thru , my concern is or my question is , does the box need to be electrically isolated from the engine? It has been very hot and humid for weeks ,but starting today the temps are going down,next weekend I saw the high only being 68.,so it may be safe to return. Stop and drop a hook on your return ,we would love to have you and Iris up to the house for drinks & dinner.