McMaster bolt size????

[tight240]

Does anybody know the McMaster bolt size to replace the exhaust manifold studs for the RB20DET?

[klh6686]

yea give me a min and i will edit and let you know.

96144A261 Metric Class 12.9 Alloy Socket Head Cap Screw M10 Thread, 30mm Length, 1.25mm Special Pitch, Packs of 25

$9.07

this will cover 2 rb's. i got my brother to pay me $10 for a set haha. anyways hope that helps!

[Flamereka]

brining this back fromt he dead but 30mm is too short for a rb20det stud. Are you sure they were 30mm I just ordered some that are 50mm since that is what the studs I pulled out are. heres the part # for McMaster96144A269 Metric Class 12.9 Alloy Socket Head Cap SCREWM10 Thread, 50MM Length, 1.25MM Special Pitch I'll let everyone know how they work out.

[tight240]

Did you order studs or bolts? The part number listed above are for bolts.

[Flamereka]

I ordered bolts but now thinking about it they may end up being a bit too long. If they end up being too long I'll just cut off head of bolt in my lathe and thread the rest of it and use it as a stud. Stupid me forgot to take into account the nut being on the stud, but 30mm was still long enough?

[tight240]

Yeah long enough for me, but what i did was used some of the studs that was on the block, and then replaced the broken studs with the bolts. So i have a combination of the mcmaster bolts, and the oem studs.

[Darius]

Without some type of mechanical locking mechanism, the bolts will eventually rattle themselves loose. Might be better off just getting new studs and reusing the stock self-locking nuts. Just my $.02