This 1/2"-20 open-end conical lug nut is designed for trailer axles ranging from 2,500 to 7,000 lbs. It provides a secure fit with a 60-degree cone seat and durable steel construction. Ideal for wheel fastening applications, it features a corrosion-resistant zinc-plated finish and an open-end design for easy access and removal. Detailed Information: Thread Size 1/2"-20 Nut Length 5/8" Finish Zinc-Plated Grade Grade 5 End Type Open-End Seat Type 60-Degree Coned Fitting: Compatible with most 2,500 to 7,000 lb trailer axles that require a 1/2"-20 thread lug nut. Provides a conical seat for secure wheel installation. Features: Durable Construction: Made from high-strength steel for dependable performance. Open-End Design: Allows for easy access during installation and removal. Corrosion-Resistant: Zinc-plated finish protects against rust and wear. Secure Seating: 60-degree cone provides a reliable fastening surface. Interchangeable Part Numbers: OTP-1220 76-5PCS 4756488 130509T B09JYY3B7P Product Overview: The Lug Nut – 1/2"-20 – Open-End Cone – For 2.5K–7K Axles | HD is a high-quality solution for trailer wheel fastening. Built from durable steel and finished with corrosion-resistant zinc plating, it ensures long-term performance under heavy loads. Its open-end design supports quick installation and inspection, while the conical seat provides a secure and stable hold for your wheels. Ideal for use on trailers across various applications.