RAYS Engineering Official Japan Duralumin Lock & Nut Set - L42 Straight M12 x P1.50 - 20 PCS

Ultra-Lightweight Track Performance Meets Premium Wheel Security. A Genuine Forged A7075 Duralumin Straight Lug Nut Kit Crafted by RAYS Japan to Reduce Unsprung Mass While Protecting Your High-End JDM Wheels. Elevate your sports car's track presentation and security with the genuine Original Japan Rays Duralumin Lock & Nut Set L42 Straight Red Anodized. Premium aftermarket wheels deserve matching elite-tier hardware. Instead of standard heavy steel, this official installation kit from RAYS Engineering is precision-machined from forged A7075 Duralumin—an advanced aircraft-grade alloy that provides the structural tensile strength of steel at a fraction of the weight. By choosing duralumin, you actively reduce rotational unsprung mass at each hub corner, sharpening steering response and braking efficiency. As beautifully showcased in image_60173c.jpg, this kit features a vibrant, chemical Red Anodized coating that offers exceptional corrosion resistance and a bold, racing contrast against dark, silver, or polished wheel faces. The "L42 Straight" layout provides a generous 42mm total length and an ultra-slim 19HEX body profile, allowing easy tool access deep within narrow tuner wheel wells while eliminating the risk of scratching the lug cavity walls. The comprehensive package provides 20 pieces in total, featuring 16 standard nuts and 4 specialized security lock nuts. It comes fully equipped with 1 specialized L60 key adapter to keep opportunistic wheel thieves away from your valuable assets. Each nut is crisp laser-etched with the iconic white RAYS branding as proof of authentic Japanese manufacturing.