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-   -   What are Fuchs lug nuts made of? (http://forums.pelicanparts.com/porsche-911-technical-forum/376254-what-fuchs-lug-nuts-made.html)

Jeff Alton 11-10-2007 10:02 PM

The company making our wheel forgings is offering it to us at a price point about 30% above 6061 so I guess that could make it a worthwhile adventure. I have not priced it out in bar stock or rod though, that should give me more to do next week!! :)

Cheers

Jim Sims 11-10-2007 10:25 PM

"Titanium galls when used against steel, ..."
- I assume they would be used against the Al Fuchs wheels, but maybe there would still be galling.

Galling (and therefore jamming) on the steel studs is what would be of concern - maybe with the right coatings and/or scrupulous use of anti-seize this could be avoided.

14,000 lug nuts would take a while to sell. I wonder in terms of
quantity produced where the cost crossover point to $8 each is taking into account design, programming, setup and inspection labor, materials, tooling, machine time, anodizing or painting, liability insurance, warehouse expenses and interest costs.

David 11-11-2007 12:58 AM

Quote:

Originally Posted by RWebb (Post 3581302)
- That's what I don't understand. My Ti comment was meant as a joke as there is not much in the way of wt. savings here. But Sherwood has a track record of clever, reasonably priced items for our cars, so he may have a secret up his sleeve...


I kind of thought this was heading in that direction too. I don't see much is gained over the steel lug nuts.

Jeff Alton 11-12-2007 11:08 AM

I was simply using that as an example to show that it could be done. One would probably have around a dollar invested in each one once they were completed. But, yes, 14000 lug nuts would take a very very long time to sell......

Cheers

Joe Bob 11-12-2007 11:14 AM

"Floatonium"....Mine are at the bottom of the Pacific Ocean.....

I use steel open headed nuts. I've helped two people that had the seats seperate from the barrel. It's not a pretty site.

Drago 11-12-2007 11:38 AM

Quote:

Originally Posted by Jim Sims (Post 3581131)
Titanium galls when used against steel, is notch sensitive and is not particularly easy to machine.

I find it hard to believe one could machine and anodize a small lot of aluminum lug nuts cheaper than buying OEM (even Porsche OEM). 2024-T4 is a common aluminum fastener alloy/condition but I would use forged 7075-T6 for lug nuts.

100% in agreement.

I'd imagine the factory ones are 7075 but probably not T6, but T62 (post machine operation HT).

David 11-14-2007 04:50 AM

I checked an old lug nut at work with a nuclear analyzer. It's not super accurate on aluminum, but it's showing to be 7075.


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