could anyone tell me the size of nut I must get welded on to a test pipe that is the same thread and size of a oem honda 02 sensor? (for wideband testing)

 

M18 X 1.5

 

thanks does that mean thats national fine or course?

 

please help need to know by tuesday morning.

 

Metric M18 X 1.5

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93SIRII &raquo;</TD></TR><TR><TD CLASS="quote">thanks does that mean thats national fine or course?</TD></TR></TABLE>
That means its metric M18 x 1.5. They are all that same size. You can pick up an o2 bung probably anywhere for about $5. Thats what we sell them for.