5mm Stud Size 10mm Hex Size 15mm Flange Black Finish Thread Cutting Nuts Compare with: Auveco #12116, 12253, G.M. #11508900, # 11501932, # 10062 GM# 11501835, Car Pak # 77-4495, 774495, Clip Lizard # 30116, W&E # 5914, Kent / Lawson # P69846, Winzer # 397.3026, Wurth # 150159282, Disco # 1041PK, 1041B