9mm x 1.25 x 30mm grade 8 bolts - Defender Source
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  #1  
Old June 29th, 2009, 12:16 AM
cdb
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Clark Bowen
1969 Series 2a/OM617 Bugeye 88"
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9mm x 1.25 x 30mm grade 8 bolts

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?
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  #2  
Old June 29th, 2009, 02:04 AM
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Andrew J. Hutton
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Did you try McMaster Carr?
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  #3  
Old June 29th, 2009, 08:13 AM
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Scott Y
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try Metric Multi Standard http://www.metricmcc.com/
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  #4  
Old June 29th, 2009, 11:26 PM
cdb
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Clark Bowen
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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.
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  #5  
Old July 2nd, 2009, 11:31 PM
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Robert Dassler
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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.
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  #6  
Old July 2nd, 2009, 11:39 PM
cdb
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Clark Bowen
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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
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  #7  
Old July 3rd, 2009, 12:53 AM
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Robert Dassler
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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.
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  #8  
Old July 3rd, 2009, 01:30 AM
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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




Quote:
Originally Posted by 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.
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  #9  
Old July 4th, 2009, 06:26 PM
cdb
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Clark Bowen
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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.
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  #10  
Old July 4th, 2009, 11:02 PM
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Robert Dassler
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Glad you got it worked out.
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  #11  
Old October 27th, 2012, 11:33 AM
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Ross Himebauch
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9mm x 1.25 taps and dies can be bought at MSC Industrial. They have an online catalog (MSCdirect.com)
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  #12  
Old October 27th, 2012, 01:11 PM
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Brett Fritzler
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Quote:
Originally Posted by cdb View Post
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.
That's the same size as the two threaded holes on the bottom of the diff that QT gaurds bolt onto.
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