Race Secure bulge acorn style lug nuts are designed for after-market rims that receive 60 degree cone seat. Our bulge acorn style nuts are crafted with precisely machined threads to ensure a perfect fit to your vehicle's wheel studs. Manufactured with cold forged steel for dependable strength and durability. These lug nuts feature premium chrome plating with essential layers of copper, nickel, and chrome to provide exceptional strength, beauty, and corrosion resistance. Our lengthy multi-point quality control process ensures that every nut we handle is created with the same love and care as the one before it. Race Secure lug nuts feature premium triple-chrome plating process, which ensure long-time resistance to rust or salt corrosion. Solid one-piece design satisfies both aethestic and quality requirements. All products are guaranteed for manufacturing craftmanship. If you are not satisfied with our product for any reason, just contact us within a month after receiving it, and you will receive a full refund. Race Secure Wheel Lug Nuts are your trust-worthy partner. NOTE: Through our 20+ year experience in lug nuts manufacturing, we observed cases in which improperly seating of one-piece nuts. Many cases resulted in an accident because if nuts are not well seated, wheel will apply a strong shear force on the studs and eventually cut them off. Each rim/wheel has some difference from others. It's your responsibility to select lug nuts with correct specs, such as thread, length, seat, type etc., for your vehicle.