Steel Lug Nuts M12 x 1.25 Extended Open End 16pcs + 4 Locks Black
Specifications Part numbers, fitment codes and shipping
- Brand
- K2 Industries
- Speedzone SKU
- K2-5775-UNV-006-TSARK
- Manufacturer part number
- K2-5775-UNV-006-TSARK
- UPC
- LN-ZTL-9017-125-BK
- Category
- Tool Sets and Repair Kits
- Shipping weight
- 2.0 lb
Steel Lug Nuts M12 x 1.25 Extended Open End 16pcs + 4 Locks Black
16 extended open-end lug nuts in steel with 4 locking nuts for secure wheel mounting. M12 x 1.25 thread pitch, black oxide finish. Built for durability and corrosion resistance on street and track applications.
Key Features
- Extended open-end design - Longer body clears aftermarket wheels with deeper offsets without interference.
- Locking nuts included - 4 locking nuts prevent vibration-induced loosening on the road.
- Black oxide finish - Resists corrosion and rust in all weather conditions.
Specs
- Material: Steel
- Thread size: M12 x 1.25
- Style: Extended open-end
- Piece count: 16 standard + 4 locking nuts
- Finish: Black oxide
What's Included
- 16 extended open-end lug nuts
- 4 locking lug nuts
Frequently Asked Questions
Will these fit my wheels without hitting the brake caliper or suspension?
Extended open-end design is made for wheels with deeper offsets or custom fitments. Verify your wheel offset and brake clearance before purchase — test-fit one wheel first if you're running aggressive fitment.
Do I need a torque wrench to install these?
Yes. Refer to your vehicle's service manual for the correct torque spec — most cars fall between 80–120 ft-lbs, but specs vary. Always use a calibrated torque wrench to avoid under- or over-tightening.
Can I mix these with my existing lug nuts?
You can if your existing nuts are the same size and thread pitch, but for consistency and safety, run a full matched set. The locking nuts should be distributed evenly — typically one per wheel.
Full details on shipping times, returns, warranty and cancellations are on our policy page.
Market conditions after 2020 have changed the landscape of automotive parts. Although we stock thousands of items across multiple warehouses and distribution channels, back-orders are unavoidable in today's market. If you need a product quickly, email, message or call us to check availability so we can explore your options.
Email Sales@Speedzoneweb.com
Call 407-846-8430
Text 407-749-6314
Answers to common questions are on our FAQ page.
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