K2 Industries
M12 x 1.25 L40 Style Extended Lug Nuts with Locks - Aluminum
M12 x 1.25 L40 Style Extended Lug Nuts with Locks - Aluminum
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M12 x 1.25 L40 Style Extended Lug Nuts with Locks — Aluminum
Lightweight aluminum lug nuts with integrated lock design in M12 x 1.25 L40 fitment. Extended length accommodates thicker wheel spacers and aftermarket wheels without compromising thread engagement. Aluminum construction reduces unsprung weight while maintaining secure clamping force.
Key Features
- Integrated Lock Mechanism - Prevents wheel creep and loosening from vibration without secondary hardware.
- Extended Length Profile - L40 dimension handles spacers and deep-dish wheels that standard nuts won't accommodate.
- Aluminum Material - Lighter than steel equivalents, reduces rotating mass without sacrificing strength.
Specs
- Size: M12 x 1.25 L40
- Material: Aluminum
- Feature: Integrated lock design
What's Included
- M12 x 1.25 L40 extended lug nuts with locks (set quantity not specified — confirm before ordering)
Frequently Asked Questions
Do these lock nuts need to be torqued to a specific value?
Refer to your vehicle's service manual for the correct torque specification for M12 fasteners. The lock design engages during normal tightening — no special procedure required.
Will these work with my aftermarket wheels and spacers?
L40 length is designed for extended applications like thick spacers and deep-dish wheels. Measure your hub surface to the wheel mounting face to confirm clearance before installation.
Can I use these as a direct replacement for my stock lug nuts?
Thread size and pitch are M12 x 1.25 — verify your vehicle uses this specification before purchase. If your factory nuts are a different size, these will not fit.
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