M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks — Aluminum
Twenty aluminum lug nuts in M12 x 1.25 thread with matching lock nuts for secure wheel retention. Extended L40 style design accommodates deeper wheel offsets and custom fitments. Lightweight aluminum construction paired with hardened steel locks prevents loosening under road vibration.
Key Features
- Extended L40 profile - Clears larger wheel offsets and custom brake packages without fouling.
- Aluminum + steel lock combo - Lighter than all-steel, with anti-vibration locking to hold tight.
- Complete 20-piece set - Lug nuts and locks together; no separate purchase needed.
Specs
- Material: Aluminum (lug nuts), Steel (locks)
- Thread size: M12 x 1.25
- Style: L40 Extended
- Quantity: 20 pieces (lug nuts and locks)
What's Included
- 20 aluminum lug nuts (M12 x 1.25 L40)
- 20 hardened steel lock nuts
Frequently Asked Questions
Will these work with my deep-dish wheels?
L40 extended length is designed for deeper offsets and wider wheels. Measure your current lug nut stack height or test-fit one before committing the full set to confirm clearance with your brake hardware.
Do the lock nuts come pre-installed on the lug nuts?
They ship as separate pieces — 20 lug nuts and 20 lock nuts. You'll thread them onto your wheel studs in order (lug nut first, then lock nut on top).
Can I reuse these if I swap wheels later?
Yes. Aluminum and steel don't seize easily, so you can remove and reinstall them multiple times. Hand-snug them first, then torque to your vehicle's spec — do not over-tighten aluminum.
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.