Longer black wheel bolts for spacers. Anybody try these?

[TurnAround]

I'd like to put a 5mm or maybe 7mm H&R spacer on the front of my X. I have DRA 25mm on the rear, but with those you can reuse your factory black BMW bolts. For the fronts, there have always been plenty of aftermarket silver bolts. Easy enough to buy from H&R for example. But.. the BMW mojo is black bolt heads. I've never been able to find any, at least not the large diameter M14x1.5 bolts that our E53 uses.

So, every once in a while I'll try searching again, just in case someone started offering them. I just now found these; BMW (Scroll down page for the M14 bolts). THey seem to offer many lengths, and all in black. Has anyone tried them?

Also, off hand I can't remember the length of our factory bolts. Anyone know?

Thanks guys