Fox , I have this same issue with our New Zealand assembled Chev pickup . From Canadian parts . The thread is an odd size too .

On one of my trucks I just had to change every thing to the US style to get it finished .

(Then I found a local vendor with some old stock on the shelf ).
pic of size and pic of new item box part#

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DSCF3384.JPG (224.55 KB, 55 downloads)

Last edited by Dusty; 08/12/2019 2:38 AM.