ACDelco M14-2.0 Thread Multi-Purpose Nut - 11569856 Part #: 11569856 Line: ACD ACDelco M14-2.0 Thread Multi-Purpose Nut 1 Year Limited Warranty Thread Size: M14-2.0 Height (in): 1-1/8 Inch Height (mm): 25mm Hex Size (mm): 21mm Color/Finish: Zinc-Plated Self-Locking: Yes Show More Show Less