K2 Industries
M12 x 1.25 Extended L40 Style Lug Nuts 20pc Set with Locks - Aluminum
M12 x 1.25 Extended L40 Style Lug Nuts 20pc Set with Locks - Aluminum
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M12 x 1.25 Extended L40 Style Lug Nuts 20pc Set with Locks — Aluminum
Twenty aluminum lug nuts in M12 x 1.25 thread with integrated lock design, L40 extended style. Built for vehicles that demand corrosion resistance and secure wheel retention. Includes matching lock nuts to prevent loosening under vibration and load.
Key Features
- Extended L40 Profile - Sits proud of the wheel for custom wheel fitment and visual clearance
- Integrated Lock Design - Paired lock nuts resist vibration-induced loosening during daily driving
- Aluminum Body - Resists corrosion and keeps rotating mass minimal compared to steel
Specs
- Thread Size: M12 x 1.25
- Style: L40 Extended
- Material: Aluminum
- Quantity: 20 pieces (includes lock nuts)
- Condition: New
Whats Included
- 20 M12 x 1.25 aluminum lug nuts with lock design
Frequently Asked Questions
Will these work with my factory wheels?
L40 extended nuts are designed for aftermarket wheels with recessed seats. Test-fit them on your specific wheel before committing — some factory wheels require standard-height nuts. Measure the wheel's lug seat depth if unsure.
Do I need a special socket or wrench to install these?
Standard lug nut sockets and wrenches work with M12 x 1.25 nuts. Tighten to your vehicle's manufacturer torque specification — check your service manual for the exact value.
Will aluminum lug nuts corrode in winter or wet climates?
Aluminum resists rust better than steel, but salt and moisture can still cause oxidation over time. Inspect them periodically and clean off road salt if you live in harsh winter conditions.

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