OEM Lug Nut/Rim Ball Seat Specs

[Pow-Pow]

Does anyone know the specs of the OEM lug nut/rim ball seat. German cars use numbers like R12 R13 R14 to describe the seat. Was trying to find the specs on the OEM Type S ball seat for 14 x 1.5 lug nuts. Just haven't seen the 'R' number of the seat.

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[StingertimeNC]

Hmm, you mean like 60 degree conical seat? you have the rest of the specs above.

 

[Pow-Pow]

Hmm, you mean like 60 degree conical seat? you have the rest of the specs above.

No not 60 conical, ball seat. What radius is the seat R13 or R14.

 

[StingertimeNC]

Hmm, no idea. Somebody must know though.

 

[Frenzal]

I think it is just ball seat. No other specs.

Conical seats may have different angles, but not the ball seat.

If I'm wrong, I'll learn something!

 

[s219]

According to this pretty thorough evaluation, they are R14 and same as Porsche:

https://www.civicx.com/forum/threads/lug-nut-solution-for-nsx-wheels-solved.42281/

Can't confirm as I've never looked into this myself though. Always just gotten them from Honda and the radius was never mentioned, just "ball seat".

If you have a drafting template for circles with mm sizing, a 28mm circle should let you confirm if it's 14mm radius.

 

[Pow-Pow]

According to this pretty thorough evaluation, they are R14 and same as Porsche:

https://www.civicx.com/forum/threads/lug-nut-solution-for-nsx-wheels-solved.42281/

Can't confirm as I've never looked into this myself though. Always just gotten them from Honda and the radius was never mentioned, just "ball seat".

If you have a drafting template for circles with mm sizing, a 28mm circle should let you confirm if it's 14mm radius.

Think 14 or R14 is spot on to the correct seat. Was looking at some 14x1.5 R14 Porsche titanium lug nuts, just was double checking. They are 1/2 the weight of OEM lugs.

 

[Victorofhavoc]

Think 14 or R14 is spot on to the correct seat. Was looking at some 14x1.5 R14 Porsche titanium lug nuts, just was double checking. They are 1/2 the weight of OEM lugs.

I just measured the oem lug nuts. They are 25.25mm at the seat, which makes them a 12.6mm radius. The better fitment would be an r13

 

[Victorofhavoc]

I just measured the oem lug nuts. They are 25.25mm at the seat, which makes them a 12.6mm radius. The better fitment would be an r13

Actually I take this back. The ball section is pretty shallow on the oem lug nuts. R14 is appropriate. You could fit an r13 without any concern as well, especially a deeper one.

 

[s219]

I just measured the oem lug nuts. They are 25.25mm at the seat, which makes them a 12.6mm radius. The better fitment would be an r13

What did you measure? The radius in question is the radius of the ball and that is not something you can easily measure without a gauge or template:

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