The D-Type Hook is a key connector in power fittings and fiber optic cable systems, widely used for suspending and securing transmission and distribution lines, as well as telecommunication cables. This product, manufactured by Handan Jinmai Fastener Manufacturing Co., Ltd., is crafted from high-strength alloy steel or stainless steel using precision machining techniques, resulting in excellent load-bearing capacity and environmental adaptability. Since its founding in 2010, the company has focused on the research, development, and manufacturing of power fittings and line accessories. Its product range includes tension clamps, suspension clamps, and pre-twisted fittings, which are widely used in the power, communications, and railway industries.
1. High Strength and Corrosion Resistance:
Made of high-quality alloy steel or stainless steel, with a hot-dip galvanized or passivated surface treatment, the connector boasts a tensile strength of ≥550 MPa and excellent corrosion resistance, making it suitable for high-temperature, high-humidity, and salt spray environments.
2. Optimized Structural Design:
The D-shaped hook features a rounded transition design to reduce stress concentration and enhance connection stability. Anti-slip grooves are located at the end of the hook to prevent accidental disconnection.
3. Compatibility and Versatility:
Standardized dimensions accommodate a wide range of optical cable fittings, insulators, and power line accessories, supporting customized thread, hole diameter, and length requirements.
4. Easy Installation:
The modular design simplifies installation, and specialized tools allow for quick assembly and disassembly, reducing installation complexity and maintenance costs.
1. Raw Material Selection:
Carbon steel or stainless steel conforming to ASTM A307 or GB/T 699 standards is used to ensure base material strength and toughness.
2. Precision Forming:
Forging is performed using fully automatic CNC punching machines and friction presses to ensure precise hook geometry. Laser cutting is used in key areas to maintain tolerances within ±0.1mm.
3. Surface Treatment:
Hot-dip galvanizing (zinc layer thickness ≥ 85μm) or Dacromet coating significantly enhances rust and weather resistance.
4. Quality Inspection:
Each batch of products undergoes tensile testing (breaking load ≥ 15kN), salt spray testing (rust-free for ≥ 72 hours), and full dimensional inspection to ensure compliance with GB/T 2317.1-2008 standards.
Materials: Carbon steel (Q235/Q345), stainless steel (304/316)
Surface treatment: Hot-dip galvanizing, Dacromet coating
Rated load (kN): 5.0–20.0 (customizable upon request)
Applicable wire diameter (mm): Φ10–Φ30 (compatible with ADSS/OPGW optical cables)
Operating temperature (°C): -40–+150°C
Certification standards: GB/T 2317.1-2008, IEC 61284
The D-Type Hook, with its high strength, corrosion resistance, and easy installation, has become an indispensable connection solution for power and communication line projects. As a professional manufacturer, Handan Jinmai Fastener Manufacturing Co., Ltd. boasts advanced production equipment and a comprehensive quality management system, committed to providing customers with highly reliable, customized products. For further inquiries or customization needs, please contact:
- Email: [email protected]
- WhatsApp/Wechat: +86 13831001495. Always customer-oriented, the company continuously innovates its processes and technologies to support the construction of global power and communication infrastructure.
We have recommended some of our Related products to you. I hope you will be interested.
