Oil drain plug, with flange, M16 x 1.5 x 20mm, 8mm square drive head.
M15 X 1.5MM Oil Pan Thread Repair Kit Set Sump Oil Drain Plug Repair Kit
M15 X 1.5MM Oil Pan Thread Repair Kit Set Sump Oil Drain Plug Repair Kit Garage
UK M15 X 1.5MM Oil Pan Thread Repair Kit Set Sump Oil Drain Plug Repair Kit Hot
M15 X 1.5MM Oil Pan Thread Repair Kit Set Sump Oil Drain Plug Repair Kit.