Small Torx (Was: What is a safe way to clean corrosion?

[Sridhar Ayengar]

Gordon JC Pearce wrote:
>>> You've obviously not run into these, you lucky fellow:
>>
>> You and Gordon are right, I hadn't heard of Torx Plus or had the 
>> misfortune to encounter any.
>>
> 
> Sorry Jay for the OT car stuff, but it may be worth pointing out that VW 
> was also where I first saw those 12-lobe spline heads, where the bolt 
> head looks like the inside of a socket - that was on an '84 Passat. They 
> really don't want non-VW people opening things up.

That's not really a spline-head.  It's triple-square.  The cut angles 
are 90-degrees.  They're all over the place on my Audi.  They use them, 
not to make them difficult to remove by non-VAG personnel, but because 
they are capable of taking a truly enormous amount of torque before 
camming out.  Makes them great for suspension and brake parts.  You can 
get a set of sockets for them for about $10.

Peace...  Sridhar