No, I didn't put the thousands in. We're on the same scale, but tensile strength only applies tot he actual pull strength of a bolt. Which realistically isn;t a load we typically put on bolts. Tensile yield is 1 of about 6 tests that a bolt goes through. Surface hardness, and core hardness are 2 others. Realistically the base alloy used and the heat treatment process effect the "strength" more than anything else.

Until recently I worked in a factory that manufactured bolts, so I had a few thousand run off in the spec that we use. The only difference between what the m/c's normally ran, and what I wanted was the overall length. That and I had the knurl diameter under the head made a few thou larger to increase the interference fit, eliminating the need to weld the studs in place. Also I had them use what's called a "MATthread" which makes it virtually impossible to cross thread a bolt.

 

No worries Joe, it was on the CRX Resource years ago, about Canada/USA. No sweat now man.

 

Here's the website for MAThread. Check the link at the top of the page that says, "See our fastener in Action" to see a video of what I meant about not being able to X thread

 

I'm still confused as to what other studs you are refering to Clayton, aside from some that you made...

 

Clayton what studs are you using? I can't imagine the manufacturer wants you to keep it a secret?

I have ARPs in mine, love them.

 

We had all 8 of the Junk2's brake off on our Prelude during passes at the track.

 

Clayton thats pretty cool. It looks as though the 1st couple threads are round to guide the stud and then transitions to actual threads?

 

I.C.C.- That's exactly my point. I had studs made that were essentially a copy of a GM product. If you go into your GM dealer, and ask you'll find the same one;s that I had made.

SovXietday- General Motors was the final product. The place that made them was called Ingersoll Fasteners, and the website was/is http://www.ingersollfasteners.com/ however they are no longer in business, but their parent company in Montreal is.


Josh, that's exactly what it is, and it performs flawlessly every time. The factory that I used to work at, used the MAThread for all of it's "American Axle" wheel bolts, which to my understanding went on some form of GM truck.

 

Honda = overseas.

 

There typically isnt much "Honda" left on most of these cars!