Making O2 Sensor Bungs

[tec_41]

I recently had a downpipe fabbed up for my car to finish the turbo, and now the last thing I need to do is weld in a bung for the o2 sensor. It's running quite rich at the moment

Am I correct in saying the size I need is M18 x 1.5? Is there anywhere I could find this locally, maybe a hardware store? I checked around Menards the other day and they didn't have a nut that size...and I know I could order one off ebay for relatively cheap but I'd rather just get it done today with just a nut or something. Any advice is appreciated, thanks!

 

[68442]

You can find oddball stuff like that a straight hardware stores, call before you make the trip though.

 

[EclipseTical]

stop by your local muffler shop, they should have them. O2 bungs are a standard size.