[oppdan]

I’ve searched all over and cannot find the part number for the nut for the number two internal post on the rail under the hood for the fuse box. I found that the fuse box is part X50B, but nothing I look at tells me what I need for the one that I lost. It’s a 2017 2LT 1LE V6 M6. I know it’s a 13 mm socket but I need to know the threading I found on GM parts site a universal GM nut but I’m not sure if that’s the one that goes on that terminal. Thanks for any help or even just where I can buy an assortment of nuts that would have one of these

[bishopts]

M8x1.25

[oppdan]

Thank you so much. Headed to the store. LOL

[bishopts]

M6x1.0 will be 8mm and 10mm heads normally.
M8x1.25 will be 12mm and 13mm heads
Its the most used sizes across the board for all car makes.

M10 is where it changes.
M10x1.25 will be cars from Asia mostly. 12mm and 14mm heads. A nissan from Mexico will have those on the engine but not the body.
M10x1.5 will be most other areas. 13mm, 15mm, 16mm heads. That nissan from Mexicos body and engine mount bolts.
M12x1.25 is also asia. 17mm and 19mmbheads
M12x1.5 will be 16mm, 18mm, 21mm heads. Most lugnuts are that thread

[oppdan]

OK, so the M8x1.25 was too big for terminal 2. The second one up from the bottom in that pic. It did fit terminal 1 though on the bottom. I also bought and tried M6x1.00 and that is too small. Didn’t see M6x1.25 at either store. And I swear it was a 13mm socket to remove it. Could it be SAE?

Thanks I hate cars

Originally Posted by bishopts

M6x1.0 will be 8mm and 10mm heads normally.
M8x1.25 will be 12mm and 13mm heads
Its the most used sizes across the board for all car makes.

M10 is where it changes.
M10x1.25 will be cars from Asia mostly. 12mm and 14mm heads. A nissan from Mexico will have those on the engine but not the body.
M10x1.5 will be most other areas. 13mm, 15mm, 16mm heads. That nissan from Mexicos body and engine mount bolts.
M12x1.25 is also asia. 17mm and 19mmbheads
M12x1.5 will be 16mm, 18mm, 21mm heads. Most lugnuts are that thread

[bishopts]

Verified. 1 and 2 are both m8x1.25. I just swapped mine between each other. Maybe your number 2 stud is messed up.

Remember that stud us bare except at the bottom.

[oppdan]

I knew you had to be right and you were. I didn’t get all the way down to the threads I was sizing it on the post above the threads. (Tired dark and cold out) thanks for the help

[bishopts]

Originally Posted by oppdan

I knew you had to be right and you were. I didn’t get all the way down to the threads I was sizing it on the post above the threads. (Tired dark and cold out) thanks for the help

I had a feeling you were, that's why i tried to get a picture of how it is supposed to be. I had a customer do the same thing on a malibu one time.
I'm glad i could help you figure it out.