West Coast Accessories Lug Nut Installation Kits 1/2" Open Bulge Acorn Spline Lug Nuts 0.85" 6 Lug Install Kit
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
West Coast Accessories W56012STO-1 1/2″ Open Bulge Acorn Spline
Lug Nut Installer Kit (6-lug)
Product Description:
Upgrade your wheel-hardware game with this premium lug-nut install kit from West Coast Accessories—engineered for style, strength and precision. This kit is designed to properly install their open-style bulge acorn spline lug nuts on 6-lug (1/2″) systems, giving you a clean factory-fit appearance combined with robust aftermarket performance.
Why You’ll Want It:
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Purpose-built for 6-lug wheel applications: This kit is tailored exactly for the WCA bulge acorn style in 12 mm × 1.5 thread size (verify fitment with your vehicle).
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High quality construction: Crafted to fit smoothly, minimise damage to the lug nuts and wheels, and give you a clean installation every time.
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Professional grade finish: The kit supports the open-style acorn lug nuts from WCA—designed for modern trucks, SUVs and aftermarket wheels where both appearance and durability matter.
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Speedzone Approved: As a performance shop and hardware specialist, we offer this kit to ensure your lug nuts are installed correctly, reducing risk of stripped threads, improper torque or installation damage.
Features at a glance:
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Compatible with WCA bulge acorn spline lug nuts in 12 mm × 1.5 thread (check your vehicle’s specification).
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Designed for 6-lug wheel hubs—perfect for many trucks and SUVs.
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Utilises a 1/2″ open socket format for easy installation (standard torque-wrench friendly).
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Built to help avoid common installation issues (wrong socket size, rounding off lugs, mismatched hardware).
Fitment & Installation Notes:
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Confirm that your wheel studs are 6-lug and thread pitch is 12 mm × 1.5.
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Confirm that you are using the corresponding WCA bulge acorn spline lug nuts that match this kit’s design.
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Ensure to clean out the lug-nut seats and threads before installation, and apply the correct torque specification as per your vehicle and wheel manufacturer.
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If you are installing aftermarket wheels, double-check seat type (bulge acorn, open style) and ensure compatibility with this kit and the lug nuts themselves.
Why Choose Speedzone?
As an aftermarket performance specialist, Speedzone Performance LLC takes hardware seriously. We carry top-tier wheel and lug-nut systems because we know that even the smallest components matter when you’re pushing performance. When you buy this WCA installation kit from us, you’re getting quality you'd trust under track or heavy duty use.
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.