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  • M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum
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M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum
M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum
M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum
M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum
M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum
M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum
Load image into Gallery viewer, M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum
Load image into Gallery viewer, M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum
Load image into Gallery viewer, M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum
Load image into Gallery viewer, M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum
Load image into Gallery viewer, M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum
Load image into Gallery viewer, M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum

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M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum

K2 Industries
K2-5921-UNV-006-TSARK
Tool Sets and Repair Kits
$110.00 $89.99
$89.99
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M12 x 1.25 L40 Style Extended Lug Nuts 20pc Set w/ Locks - Aluminum
Description
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.

✓ Ships from FL Warehouse ✓ In-House Quality Check ✓ 20-Piece Set with Locks
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.

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