Lug nuts
 

Are the lug nuts unique to the Mach 1? I bought some FR500 wheels and the lug nuts (1/2 x 20 with 6-spline socket) that I bought from the local auto parts store won't work. They run out of thread before they tighten down on the wheel. I compared them to the factory OE lug nuts and the OE ones are much longer to accommodate the longer wheel studs.

I reordered some from American Muscle, but the tech specs list them at 1.3" long which seems like it'll be about the same length as the auto parts store ones I bought that won't work. I'm wondering if I should cancel my order.

I'm running the spline lug nuts from LMR I think in the front and open ended splines on the rear for my arp studs. I'm pretty sure all years are the same.

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Re: Lug nuts
 

I ended up getting a set from American Muscle that are 1.4" long and they fit...just barely...but they fit.

Re: Lug nuts
 

Check with mcgard lugnuts different styles and lifetime guarenteed for rust on the chrome