K2 Industries
M12 x 1.25 Spline Extended Lug Nuts with Locks 20pc Set - Aluminum
M12 x 1.25 Spline Extended Lug Nuts with Locks 20pc Set - Aluminum
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M12 x 1.25 Spline Extended Lug Nuts with Locks — 20-Piece Set, Aluminum
Spline-drive extended lug nuts with integrated locks in lightweight aluminum construction. The 20-piece set pairs matched pairs with security locks to prevent wheel theft and loosening. M12 x 1.25 thread pitch fits a wide range of vehicles and aftermarket wheel applications.
Key Features
- Spline-drive design - Engages wheel seat without stripping; reduces cross-threading risk.
- Integrated locking mechanism - Prevents wheel theft and vibration-induced loosening during operation.
- Extended length - Designed for wheels with deeper seat profiles and aftermarket applications.
Specs
- Material: Aluminum
- Thread: M12 x 1.25
- Piece Count: 20 (includes lock nuts)
- Condition: New
What's Included
- 20-piece lug nut set with integrated locks
Frequently Asked Questions
Will these fit my current wheels?
M12 x 1.25 is a common thread pitch, but seat profile and extension length vary by wheel design. Measure your current lug nut length and compare to these extended nuts before ordering — spline drive requires the correct seat engagement to function properly.
Do I need special tools to install these?
A 19mm or 21mm socket (depending on your nut head size) and a ratchet handle the installation. The spline drive design is straightforward — no impact gun required, though one works fine if you're swapping multiple wheels.
How tight should I torque them?
Refer to your vehicle's service manual for the correct torque specification — it varies by make and model. Over-torquing aluminum nuts can strip threads; under-torquing risks loosening. Once set, the lock feature prevents vibration-induced rotation.
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