ET Spline Drive Tuner Lug Nuts 12x1.25

6-Spline tuner style chrome plated ET spline 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
• 6-spline tuner drive, key included with every set
• Key head fits both 3/4" and 13/16" sockets
• Chrome plated, heat treated for extra strength
• Available in 16, 20, and 24 piece sets

Run each nut down by hand with the key so the 12x1.25 threads start clean, confirm the nut seat matches your wheel's lug seats, and tighten in a star pattern. Finish with a hand torque wrench set to the spec in our torque reference chart, then re-torque after 50 to 100 miles. Skip the impact gun so you do not overshoot the spec or stress the key.

Common questions

Can I install these with a regular socket?
No. The spline drive only turns with the included key, which is part of the appeal, since a common hex socket will not grab them. The key itself works with a 3/4" or 13/16" socket or wrench, and extra keys are available separately.

How many pieces should I order?
Multiply your lug count per wheel by four: 16 pieces covers a 4-lug vehicle, 20 covers 5-lug, and 24 covers 6-lug. Each set comes with its own key.