4.2 - 1.41 x 16mm 7mm Indented Hex Head 12mm O.D. Loose Washer Black Phosphate Finish Sheet Metal Screws Compare with: Auveco #12741, G.M. # 11503395, Crest / Midwest # CRX7540, , Clip Lizard # 50229, Wurth # 150159059