[DeTomaso] Galled stainless fasteners

Tomas Gunnarsson guson at home.se
Thu May 27 14:26:47 EDT 2010


Boyd,

304 stainless steel has a yield strength of about 1/3 of what normal
hardware store grade (8.8) metric screws have. 304 strength is equivalent to
grade 2 or so in US terms I think.

http://www.azom.com/details.asp?articleid=965

Tomas

-----Original Message-----
From: detomaso-bounces at realbig.com
[mailto:detomaso-bounces at realbig.com]On Behalf Of boyd casey
Sent: den 27 maj 2010 06:28
To: john at haasline.com
Cc: detomaso at realbig.com
Subject: Re: [DeTomaso] Galled stainless fasteners


I  am re assembling my suspension (a-arms,shock mounts ,sway bar mounts, and
ball joints) using stainless steel hardware . Any thoughts or advice on
this? I am using lock nuts  and anti seize. I used conventional steel
hardware and loctite red on the calipers and rotors / hats  and front hubs
and the adapters for cv joints to the ZF and rear axles. (this is the ken
green brake mod)
Boyd

On Wed, May 26, 2010 at 9:30 PM, Haas, John <john at haasline.com> wrote:

> If you do drill, try to use a split point drill and coolant to avoid cold
> working the bolt while drilling. My local ACE (on the Gulf coast) stocks
> ASTM F593 stainless fasteners which have good material properties given
the
> cold rolling requirements. Still, always use never seize. If you come
> across
> A286 aerospace surplus stuff it's fantastic, just like the value of a good
> ol' grade 5 fastener...
> Nice to be back on the list after a 10 year hiatus!, John Haas
>
> -----Original Message-----
> From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]
> On
> Behalf Of JDeRyke at aol.com
> Sent: Wednesday, May 26, 2010 1:02 PM
> To: davel at emspace.com; detomaso at realbig.com
> Subject: Re: [DeTomaso] Galled stainless fasteners
>
> ARP make strength-graded stainless fasteners. Harley-Davidson-suppliers
> make shiny, grade-nothing bolts. You are SOL unless you absolutely use
> anti-sieze every single time. Personally, I would deposit all those bolts
> in
> a
> landfill, and I'd look very closely at the pulleys too- if they came from
> the
> same source.
> Stainless brazes beautifully. You MAY be able to braze a long allen wrench
> to the ratted-out hex, then using a Vice-grip on the outside of the head
> and
>
> using both the allen and the Vice-grip, maybe tear the threads out and
> re-tap. The brazing heat might help, or might not. If the head is that
> soft,
>
> most likely, drilling will be your best option. And if you do, use lube on
> the
> drill: stainless- even Chinese stainless- doesn't drill well either.
Harbor
> Freight and Manhatten Supply have some stud-extractors that might fit,
> depending on where the bolt is. Good luck- J DeRyke
> _______________________________________________
>
> Detomaso Forum Managed by POCA
>
> Archive Search Engine Now Available at http://www.realbig.com/detomaso/
>
> DeTomaso mailing list
> DeTomaso at list.realbig.com
> http://list.realbig.com/mailman/listinfo/detomaso
> Checked by AVG - www.avg.com
> Version: 9.0.819 / Virus Database: 271.1.1/2895 - Release Date: 05/26/10
> 01:25:00
>
> Checked by AVG - www.avg.com
> Version: 9.0.819 / Virus Database: 271.1.1/2895 - Release Date: 05/26/10
> 01:25:00
>
> _______________________________________________
>
> Detomaso Forum Managed by POCA
>
> Archive Search Engine Now Available at http://www.realbig.com/detomaso/
>
> DeTomaso mailing list
> DeTomaso at list.realbig.com
> http://list.realbig.com/mailman/listinfo/detomaso
>
_______________________________________________

Detomaso Forum Managed by POCA

Archive Search Engine Now Available at http://www.realbig.com/detomaso/

DeTomaso mailing list
DeTomaso at list.realbig.com
http://list.realbig.com/mailman/listinfo/detomaso




More information about the DeTomaso mailing list