I am missing the Acorn nuts that fasten the Mach1 door trim. Per the fastener spreadsheet the following is listed. 8-32 Nut, Acorn, 0.393T, 3/8 drive. Ford P/N 384102-S100. In by box of old fasteners from my car, I found two that fit this description. They are ~ .393 tall, 3/8 drive and is a stamped acorn nut that has 6 flanges that are formed to make the head. Pease see the picture. Are these the correct flange nuts? Also where to buy them? Alan