WFHV10YLW

BTP10X55BLK

WNORD10

NRHH10BLK

I bought enough for both of our e53 and a couple spares for $65 with shipping.

BMW crushed the nut into an oval to make it locking I ordered nordlock washers instead.

12.9 @ 80 N·m is a good match for
10.9 @ 65 + 90° (TTY)

The 12.9 at 80 N·m can be used indefinitely. Technically you'll lose clamping force on reuse if not lubricated so 60 N·m with some good moly grease for consistent clamping force.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)