Black Spline Lug Bolt 12x1.50 Thread 40MM Shank
Fitment and specs
- Thread size: 12x1.5
- Shank length: 1.55 inches (40mm)
- Overall length: 2.73 inches (69mm)
- Black spline drive design for narrow lug bolt holes
- Includes six-spline installation key
- Sold in 16, 20, or 24 piece sets
Spline lug bolts are built for tuner style wheels with ultra thin lug holes where a standard socket will not reach. Seat each bolt with the included six-spline key, torque to your vehicle's spec using the torque reference chart as a guide, then re-torque after 50 to 100 miles.
Common questions
Which piece count should I order?
Match your total bolt count: 16 pieces covers vehicles with four bolts per wheel, 20 covers five per wheel, and 24 covers six per wheel.
Will these clamp the same as my factory bolts?
They will if the fitment matches. Verify the 12x1.5 thread, check the 40mm shank against the bolts you are replacing, and confirm your wheel's seat type, since conical, mag, and ball seats are not interchangeable.