19mm vs 20mm lugs?

[bbash]

Hi all, I recently picked up a used MS which came with aftermarket 20" wheels but I would like to go back to the OEM 19" slipstream wheels.
Though, I don't have the OEM lug nuts. The current aftermarket lugs are 19mm and from what I found OEM is 21mm.
From the looks of it aftermarket lug nuts, whether 19mm or 21mm, seem to have a bit of a smaller "seat" at the conical end of the lug nut.
Are these ok to use?

 

[Russell]

Post a picture of the aftermarket lug nut and the dimension of the seat.

 

[bbash]

I can't find exact dimensions and I don't have the OEM lug nuts for a side by side pic. But most aftermarket lugs I seen appear to have a smaller contact surface area. Screenshots attached with the OEM and aftermarket lugs.

Tesla Model S, 3, X, Y Lug Nut, Open End, M14x1.5, 2012-2023

Replace your Tesla stripped or missing lug nut with this OE replacement from EV Parts Online! Tesla Model 3 2017, 2018, 2019, 2020, 2021, 2022, 2023 Tesla Model Y 2020, 2021, 2022, 2023 Tesla Model S 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 Tesla Model X 2016, 2017...

evpartsonline.com

https://www.autozone.com/suspension-steering-tire-and-wheel/lug-nut/p/white-knight-wheel-nut-743809/883498_0_0

 

[Russell]

That's a narrow lug. You want Acorn Bulge (sometimes called Factory Bulge) with 14mm x 1.50 threads for stock Tesla wheels.

 

[bbash]

Acorn Bulge, got it. Thanks for the help.