Spline Drive Tuner Lug Nuts 12x1.25 Blue

6-Spline tuner style blue finish lug nuts 12mmx1.25 thread size with key. The hex key has both 3/4" and 13/16" head. The lugs are heat treated to achieve extra strength. Our application guide page will answer most of your application fitment questions but do not hesitate to ask us. Sold in optional 16 piece with key, 20 piece with key and 24 piece set with key. Add extra keys from accessories on the right, if needed.

Fitment and specs

• Thread size: 12x1.25 (12mm stud, 1.25mm thread pitch)
• 6-spline tuner style drive, installs and removes only with the spline key
• Included key fits both 3/4 inch and 13/16 inch sockets
• Heat treated for extra strength
• Blue finish
• Available as a 16, 20, or 24 piece set, each with one key

Hand-start every nut to avoid cross-threading, then work in a star pattern with the spline key and torque to your vehicle's spec from our torque reference chart. Use a torque wrench for the final pass rather than an impact gun so the blue finish stays unmarked, and re-torque after 50 to 100 miles.

Common questions

Do spline drive lugs add any security?
They help as a deterrent. The 6-spline pattern only turns with the matching key, so a common socket will not grip them. Treat them as a layer of protection rather than a true wheel lock, and store the key somewhere safe.

How do I know 12x1.25 is my size?
It refers to the stud: 12mm diameter with a 1.25mm thread pitch. The match must be exact, and your wheels' seat type has to match as well, since conical, mag, and ball seats are not interchangeable. Ask us with your vehicle details if unsure.