Power Fitting Open-End Bolt Fasteners

The Open-Hook Bolt (also known as the Power Utility Open-Hook Bolt, J-Type Hook Bolt, or Line Hook Fastener) is a core iron fitting specifically designed for power distribution lines and utility towers rated at 10kV and below. Integrating suspension, anchoring, and fastening functions into a single unit, it is widely utilized in the construction of urban and rural distribution networks, rural grid upgrades, maintenance of aging lines, supporting infrastructure for communication base stations, and outdoor photovoltaic and wind power projects. It stands as an essential product within the power industry, characterized by its high volume of usage and strong versatility.

Manufactured from high-quality Q235 carbon steel through a one-piece forging process, the Open-Hook Bolt features a fully threaded shank. Its J-shaped open-hook head facilitates convenient mounting, while the accompanying complete set of accessories-including a hex nut, flat washer, and spring washer-ensures anti-loosening and vibration-resistant performance. The surface undergoes a hot-dip galvanization treatment (with a zinc coating thickness of ≥85μm), providing excellent resistance to salt spray and aging; it remains rust-free for over five years in outdoor environments, making it suitable for deployment in complex settings such as coastal regions and mountainous terrain. Mainstream specifications cover M16, M18, and M20 thread sizes with lengths ranging from 200mm to 400mm; custom extended versions are also available to meet the requirements of scenarios demanding enhanced corrosion protection.

This product strictly adheres to power industry standards and is perfectly compatible with associated fittings such as pole bands, suspension plates, and guy wire hardware. Furthermore, it complies with IEC standards, making it suitable for both domestic engineering projects and export markets-including South America, Southeast Asia, and the Middle East. Compared to standard stamped parts, it offers superior strength and greater structural stability; when compared to non-standardized products, it boasts higher dimensional precision and error-free assembly. Combining high cost-effectiveness with safety and reliability, it serves as the preferred fastener choice for power distribution network construction and line upgrade projects.

Handan Jinmai Fasteners usually packaged in export standard packaging or according to customer needs. Package size and weight may vary depending on product model and quantity.and can provide customized services according to customer needs. also provide pre-sales, sales and after-sales services, including product information provision, technical consultation, contract execution and after-sales problem handling. Our products are mainly sold to South America, North America, Africa, Asia and other regions.