M18 X 1.5 Thread Silver 304 Stainless Steel O2 Oxygen Sensor Plug Bung Bolt Stub

O2 Oxygen Sensor Fitting Weld Boss/Bungs (10 Steel Stepped Bungs, M18 x 1.5)

O2 Oxygen Sensor Stepped Mounting Boss Bung M18 x 1.5

PFAB 304 Stainless Steel Oxygen Sensor Weld Bung M18 x 1.5 thread

O2 Oxygen Sensor Nut Bung 02 M18 x 1.5 THREAD

O2 Oxygen Sensor Fitting Plugs (10 pack Steel Plugs, M18 x 1.5)

O2 Oxygen Sensor Fitting Plugs or Weld Bungs (10 pack Steel Bungs, M18 x 1.5)

O2 Oxygen Sensor Mounting Boss/Bung (Stainless Steel) M18 x 1.5