9mm x 1.25 x 30mm grade 8 bolts

[cdb]

I need the above bolts for the ring gear and I cannot locate them anywhere. They are for Ashcroft 4:10 R & Ps and I'd prefer to have a USA source for speed and availabilty.
Anyone know who might have them?

[ajh]

Did you try McMaster Carr?

[Rocketman]

try Metric Multi Standard http://www.metricmcc.com/

[cdb]

Thanks...

I checked them all including Ashcroft and Randy's R & P. Nobody has the %$#% things. It doesn't appear as though Ashcroft made this R & P so now I'm trying Kam in the UK.
A friend may be able to make them on a CNC machine after he writes the program, however.

[Roadsiderob]

Are you sure they are 9mm x1.25? That is a very wierd size. Maybe 3/8-20....which I think is a B.S. size, which would make much more sense. IMHO making bolts with a lathe or CNC machine may be a bad idea as they won't be hardened and cut threads are not as strong as rolled threads.

[cdb]

Hello Rob.....

Yes, they have been measured by both the mechanic and the local bolt/nuts supply house.
Evidently, Ashcroft used this size at one time but discontinued them according to George at RDS. Ashcroft says they only used 10mm and 3/8ths unp.
I'm stumped and a bit frustrated. Can't tap the R & P - flame hardened and can't get the bolts.
Emailed Kam Diffs too but have not heard back from them.
I appreciate your comments on cut bolts - I didn't know that.
What else would you do?

Clark

[Roadsiderob]

Here's a neat web site...http://www.britishfasteners.com/threads/bsf.html
I'll see if I can find 9mm

Follow-up Post:

Clark, man, you always have the wierdest shit go wrong... I searched all around and the only reference I came across was that Alpha Romeos use 9mm driveshaft bolts. You might try searching some Alpha forums or specialty companies. I, personally, would buy a R&P set from GBR that I could actually get bolts to fit. That would be the simplest, most direct fix.

[Ren Ching]

ARP should be able to make them if they don't have them. My 3 liter head bolts were 11mm... Can't find that size anywhere...

Just phone em up...tell them what you need.

http://www.arp-bolts.com/index.html




Here's a neat web site...http://www.britishfasteners.com/threads/bsf.html
I'll see if I can find 9mm

Follow-up Post:

Clark, man, you always have the wierdest shit go wrong... I searched all around and the only reference I came across was that Alpha Romeos use 9mm driveshaft bolts. You might try searching some Alpha forums or specialty companies. I, personally, would buy a R&P set from GBR that I could actually get bolts to fit. That would be the simplest, most direct fix.

[cdb]

Turns out that they aren't 9mm x 1.25 x 30mm. They are 3/8ths BSF (or 3/8ths x 20 x 1 1/4). Makes more sense and they are nearly identical.
With the help of Roadside Rob and Bill Davis we finally figured it out and I decided to take their advice and get a new R & P (4:14 from GBR).
Thanks for everyone's help.

[Roadsiderob]

Glad you got it worked out.