West Coast Accessories W27015B 12 mm × 1.5 Spline Drive 60° Cone Lug Nut Installation Kit (20-Piece)
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
Description:
Upgrade your wheel-installation hardware with confidence using the West Coast Accessories W27015B kit—designed for performance- minded installs, cleaner looks and proper fitment.
Why this kit matters:
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Precision-matched for wheels using 12 mm × 1.5 thread lug hardware—common in many performance and import applications.
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Spline-drive head with a 60° conical seat ensures optimal contact with the wheel and proper torque distribution, reducing the chance of rounding off lugs or damaging the wheel seat.
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Includes everything needed for a full set: 20 lug bolts (for 20 lugs, i.e., full 5-lug or 6-lug wheel patterns) plus the install socket/adapter tool.
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Built to West Coast’s durability standards: heat-treated steel, corrosion-resistant finish and engineered for repeated safe wheel removals and re-installs.
Key Features:
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Thread size: 12 mm × 1.5 (verify your vehicle/wheel stud specifications).
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Seat style: 60° conical (common for many aftermarket wheels).
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Drive style: spline-drive (requires matching socket/adapter for install).
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Included quantity: 20 lug bolts + install tool.
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Finish and material: high-strength steel with corrosion-resistant coating (for longevity).
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Ideal use-case: aftermarket wheels, custom wheel builds, upgraded vehicles where proper hardware is critical.
Fitment & Installation Notes:
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Confirm your vehicle uses 12mm × 1.5 studs AND your wheels are designed for conical-seat, spline-drive lug bolts. If your wheels use a different seat style (tapered, ball, etc.), this kit may not fit properly.
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Before install: clean all wheel seats and studs of rust, debris or lubrication to ensure correct torque and seating.
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Use a calibrated torque wrench and follow wheel manufacturer/vehicle manufacturer torque specifications. Incorrect torque may lead to loosening or wheel damage.
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Keep the install socket/tool provided in the kit saved—using the correct tool ensures the spline drive lugs are installed/removal without damage.
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For future wheel servicing, retain the receipt and specification sheet—correct hardware is often overlooked and can lead to safety issues.
Our History
For 23 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.