Stock lugs work just fine. Although with such nice wheels I would recommend a $40 lock set.
Holy Crap, on a whim I did a search for the P/N of the black wheels last night and low and behold they're AVAILABLE!!! Just ordered from my local dealer since at the $215 ea price the sales tax was cheaper than shipping from Dallas to SLC...
TRD Pro style Black 17 x 7 Wheel (1) PTR20-35110-BK
Tho the link above says the stock OE lugs should work, the info on the Toyota parts side says that the TRD lug kit PTR27-89100 is required (same one as req'd for the older forged TRD beadlock wheels). Info on the TRD website also says "designed for use with 12-mm conical-seat spline-drive lug nuts". TRD site also still says "beadlock ring styling" so it won't surprise me at all if they use the OE lugs like the grey versions do...
Wheels should be here tomorrow so I'll update with official details & pics once they're in hand so all this questionable online information can be put to rest.