Buddy of mine has some cheap megan coilovers that came on a car he bought recently. They use what looks like those same hex key screws, but only 4 of them.
Granted that car is a little lighter in the front than the Z, they don't slip at all so far as we can tell, with a reasonable 40-50ft lbs on each one. AND that's with only 2 for camber and 2 for castor. Neither slips.
This setup has 6 of them and they're clamping to steel rather than aluminum... I don't think slippage would be an issue since it's spreading the force out over the entire plate.
Edit: had my facts wrong, corrected above...
Last edited by Sh0velMan; 08-15-2013 at 02:37 PM.
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