Crossover stock pipe bolt size

[gnonyx]

Hi All,
Like the title, what size are the bolts for the crossover pipe that gets bolted to the headers?
Thanks

[Steve Wood]

M10x1.5 - 40

[gnonyx]

M10x1.5 - 40

I wasn't sure since the original bolts needs to be replace.
It's funny how 3/8x16 fits, but loose not tight has it needs to be

Can the Hex Head Flange Bolt Non Serrated Class 10.9 also be use for the crossover pipe flange section?
I read there are two types both bolts are the same M10x1/5 40, but one hex head is 14mm. and the other is 15mm both with hex head flange type?

[Just a Six?]

Go to the Help Section or Display & they should have packages with 3 long & 3 shorter exhaust studs threaded both ends & 3 extra long Brass Nuts. The studs have a square 1/4" end to use for tightening that comes in handy. I've been using them for years & the Brass Nuts work well. Get 2 packs & with 6 of each you can use the Brass nuts on each end if needed.

[Steve Wood]

I don't know,, Julio

[gnonyx]

Go to the Help Section or Display & they should have packages with 3 long & 3 shorter exhaust studs threaded both ends & 3 extra long Brass Nuts. The studs have a square 1/4" end to use for tightening that comes in handy. I've been using them for years & the Brass Nuts work well. Get 2 packs & with 6 of each you can use the Brass nuts on each end if needed.

I don't know what you're talking about, since these bolts are being use for tighten the stock crossover pipe flange onto the stock headers, which has the nuts are already welded onto the headers.

[Steve Wood]

If those nuts are stripped, you can use the brass nuts on to of them is what I understood

[gnonyx]

If those nuts are stripped, you can use the brass nuts on to of them is what I understood

Thanks for the explanation, I couldn't understand why brass nuts, and no the headers welded nuts are not stripped.
I want to replace both bolt sides with new ones since I have everything all apart.

[Just a Six?]

Steve is right I wasn't very clear but I have some spares in the shop I'll take a pic today, the Brass nuts are extra long maybe
1/2"- 3/4"?? & they come off easily down the road.

[gnonyx]

Steve is right I wasn't very clear but I have some spares in the shop I'll take a pic today, the Brass nuts are extra long maybe
1/2"- 3/4"?? & they come off easily down the road.

Thanks, I do appreciate the definition, but maybe I'm wrong but isn't brass soft material and having that much torque to tighten crossover pipe to the headers the brass bolt and nuts would stripped?

[Just a Six?]

Maybe that's why they are extra long? I tighten until good & snug with a washer/lock washer included & never had an issue since the last time I touched them about 2009.

[Steve Wood]

Factory torque spec is 22 ft-lbs, I believe.  a 10 brass mm nut should not have any problem holding that, I would think...the longer nut would help some as well. Fortunately it does not matter if your welded on nuts are good

[Just a Six?]

Everyone just stop touching your Nuts & they'll be fine! 

[gnonyx]

Maybe that's why they are extra long? I tighten until good & snug with a washer/lock washer included & never had an issue since the last time I touched them about 2009.

I don't care how old you are, always learning something new Thanks Again

[gnonyx]

Everyone just stop touching your Nuts & they'll be fine! 

If only it would stop leaking