M12 x 1.25 L40 Style Extended Lug Nuts with Locks - Aluminum
K2 Industries
M12 x 1.25 L40 Style Extended Lug Nuts with Locks - Aluminum
Check fitment before ordering
Match the year, make, model, trim and engine in the product details. Review mounting requirements and vehicle modifications. Ask us about this part.
Eligible returns within 30 days of receipt. Items must be unused, with original packaging and all included parts. Contact Lee Mods before sending anything back. Lee Mods pays return shipping for eligible U.S. returns; no restocking fee. See Returns & Exchanges for full conditions.
Product information from K2 Industries
Manufacturer warranty and guarantee statements below are subject to that manufacturer’s terms. For return eligibility through Lee Mods, see Returns & Exchanges. Ask Lee Mods to clarify any warranty or guarantee before ordering.
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.
Your vehicle
Select a vehicle to check the supplied application records for this part.
Choose or change vehicle →Product reference & ordering help
Supplier & part identification
K2 Industries
| Option | SKU / part reference |
|---|---|
| Standard | K2-5916-UNV-006-TSARK |
Vehicle compatibility
Read the application years, model, trim, engine and exclusions in the description above. A make-level collection or product recommendation alone does not confirm fitment.
Request fitment help →Installation & specifications
Review the manufacturer’s specifications and installation notes above. Confirm required mounting hardware, tools and modifications before ordering. If instructions are not supplied, contact us with the part reference.
Shipping expectations
Processing and delivery vary by product, supplier and destination. Contact us to confirm timing for your part before planning an installation.
Shipping & delivery informationManufacturer warranty
Coverage and exclusions vary by manufacturer and part. Review the supplied product documentation or ask us for the applicable terms.
Warranty information