I am putting new trim on a new 69ss Grill. I am having trouble trying to attach the center trim strip to the grill. I cannot find a nut that will fit into the channel in the back of the grill to tighten the trim. The trim cam with the standard fastener studs but without nuts. Please do not ask what was used to fasten the trim on the old grill, you would not believe me if I told you. Please help.