M12 x 1.25 O2 Sensor Bung Plug - 6AL4V Grade 5 Titanium

6AL4V GRADE 5 TITANIUM O2 SENSOR BUNG PLUG — M12 X 1.25 THREAD The Ace Race Parts brand of metric Oxygen (O2) Sensor Bung Plugs is precision machined using solid 6AL-4V Grade 5 Titanium bar stock and work with all standard O2 Sensors that use a M12 x 1.25 thread.