Thanks, Grenade. The consensus at work was 4140 ("go
with hi carbon if you don't care about aesthetics").
We'll see exactly what's in stock/scrap. To impress
the Thickos, the little brake drum screws on the race
car are A286 (they were in stock and fit!).
--- zeke5550@aol.com wrote:
>
> You ask a big question. Most lugnuts are made from
> 1018 types (low carbon, low strengh, and low cost).
> With A286 you have gone from a Yugo to a Ferrari.
> A286 is a nickel base alloy and is not even
> "steel".- not a good choice (but very expensive if
> you need to impress other Thickos). 4140 has twice
> the carbon (heat treatablity) and more than twice
> the alloy (for strength). The problem is that
> strength is related to hardness not material
> selection. 4140 is a great choice but hardness is
> still critical.
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