Where to buy Metric Blues?

[matt]

Stock bolts or racewear studs. I have never seen a set of new stock bolts break (not that I keep up with turbo M20s too much anymore). "metric blues" are a solution to a problem nobody seems to have. Studs are stronger than stock bolts (it still doesn't matter) but they're reusable. I've never seen any proof that these metric blues are any stronger than stock either, especially torqued to 65ftlbs instead of torqued to yield like the stock ones. (yes, a fastener's strength depends on how it's torqued)

I have used a lot of McMaster hardware, and I think it's mostly garbage. I had a couple of grade 10.9 metric blue bolts I put in my guibo break clean in half. (I have the pieces on my desk)

[E30Idea]

I find it hilarious that people use those bolts.

Why is that? I was planning on using them. If you can enlighten me on a better set for the money and show me why..... I am all ears.

-Ryan

[matt]

I find it hilarious that people use those bolts.

[MR 325]

I wish to hell we had a decent search engine on this forum.

We do...

[mode]

I find it hilarious that people use the term "Metric Blue".

[StereoInstaller1]

Right on, man....thanks! AFAIK, ,my washers are stock and 100% useable.

MBs are only a little bit more money than stock, but re-usable, right? Awesome!

I wish to hell we had a decent search engine on this forum.

I will order in the AM. I wanna get my motor done.

I will be pestering all of the MS and turbo guys in the next few months.

Luke

[backtrail69]

Here you go buddy. Quoted directly from the turbo e30 FAQ:


Q: What head bolts or studs should i use?
A: Metric Blue - grade 12.9 head bolts http://www.mcmaster.com/
Part Number 91303A306 $10.56 per Pack of 5. you will need 3 packs of 5.
also, use the washers from your old head bolts.

Material, Class 12.9 Blue-Coated Alloy Steel
Head Style, Standard
Drive Style, Hex Socket
System of Measurement, Metric
Thread Size, M10
Length, 150 mm
Hex Key Size, 8 mm
Thread Style, Standard Right Handed
Thread Length, Partially Threaded

Be careful with the Metric Blue 12.9 bolts as they don't come pre oiled, just put a thin coat on or they will most likely break due to oil at the bottom not being able to compress. I did this with one as well, it snapped at around 65ft-lbs. Also, what type of washers are you using? If you can salvage the stock ones from the stock head bolts, if not Mcmaster has some good thick ones as well. I torque my bolts to 65ft-lbs always now, just brush a thin coat of oil on the threads.

[StereoInstaller1]

OK, so I have searched, could not find a mention of a specific store that sells MBs.

Anyone have a lead?

Thanks,
Luke