When I replaced my factory steel wheels with the Toyota alloy wheels I bought I must have had different collar nuts. Until the wheels fell off, so I think they work as advertised.
Pros
SPECIFICATIONS: Black Closed Pear End Acorn Mag Set Flare Nuts - M14 x 1.5 Threaded Bolt - 60 Degree Cone Seat - Hex 21mm 22mm (7/8" Hex) - 1.8" (45, 72mm) Overall - Grade 10.9