US Dollars
Wheels & Tires Series · Part 3 · Lug Nuts
What Lug Nuts Does My Classic VW Need?
Every Airkewld brake kit uses the same stud. The wheel decides the lug.
Wheels & Tires Series · Classic VW
Part 3 · You are here
Lug nuts
Your wheel decides the lug
01 · Quick answer
Your wheel decides the lug
Quick answer
All Airkewld brakes use a 14 mm × 1.50 stud. The lug nut depends on the wheel: ball seat open for stock steel, 60° conical for Smoothie and BRM, ball seat closed for Porsche, and mag lugs with washers for EMPI 5-spokes.
02 · Match it up
Wheel to lug nut
| Wheel | Seat | Thread | Example |
|---|---|---|---|
| Stock steel wheels | Ball seat, open | 14 × 1.50 | Ball seat open lugs |
| Airkewld Smoothie / BRM | 60° conical | 14 × 1.50 | 60° conical lugs |
| Porsche wheels (any) | Ball seat, closed | 14 × 1.50 | Ball seat closed lugs |
| EMPI 5-spoke | Mag lug with washer | 12 × 1.50 studs | Mag lugs |
The wrong seat won't hold the wheel properly, even when the thread matches. Always match the lug's seat to the wheel.
03 · FAQ
Lug nut questions
What thread do Airkewld disc brake kits use?
14 mm × 1.50 studs.
What lugs go on Smoothies?
60° conical seat lug nuts. More Smoothie specs in Part 4: Smoothie tech sheet.
Can I use my stock lugs on aftermarket wheels?
Only if the seat matches. Stock steel wheels use ball seat open lugs; most aftermarket wheels don't.
What about EMPI 5-spokes?
They call for 12 mm × 1.50 studs and mag lugs with a washer.
Process — Not Parts — Determines Performance