K2 Industries
Extended Spline Lug Nuts M12 x 1.25 20pc Set with Locks Aluminum
Extended Spline Lug Nuts M12 x 1.25 20pc Set with Locks Aluminum
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Extended Spline Lug Nuts M12 x 1.25 20pc Set with Locks Aluminum
Twenty aluminum lug nuts with integrated locks, M12 x 1.25 thread pattern, extended spline design. Built with spline geometry for secure wheel mounting and anti-rotation locking features to prevent loosening under vibration. Lightweight aluminum construction reduces unsprung weight compared to steel alternatives.
Key Features
- Integrated locking mechanism - Resists vibration-induced loosening on road and track use
- Aluminum construction - Lower rotating mass improves acceleration and braking response
- M12 x 1.25 spline pattern - Engages wheel hub securely without stripping
Specs
- Material: Aluminum
- Thread size: M12 x 1.25
- Quantity: 20 pieces with integrated locks
- Design: Extended spline
Whats Included
- 20 aluminum lug nuts with locking features
Frequently Asked Questions
Do these work with my existing wheels?
Extended spline nuts fit most aftermarket and OEM wheels with M12 x 1.25 lug holes. Verify your wheel's lug hole pattern before purchase — confirm thread size and spline compatibility with your wheel manufacturer.
How tight should I torque these?
Refer to your vehicle's service manual for proper torque specification. Overtightening aluminum can strip threads; undertightening risks loosening. Use a calibrated torque wrench and follow manufacturer guidelines exactly.
Do these come with installation tools?
This set includes only the lug nuts themselves. You'll need a lug wrench or impact socket (typically 19mm or 21mm) and a torque wrench to install them properly on your wheels.

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