Zinc Plated U Bolt Double Threaded U Bolt with Nut

What Is a Double Threaded U Bolt with Nut?

A double threaded U bolt with nut is a U-shaped fastener with threads on both ends, allowing nuts to be secured on either side. Unlike standard U bolts (which may have threads only on the tips), double threaded U bolts provide greater adjustability and clamping force. They are commonly used to secure pipes, tubes, cables, or other cylindrical objects to a surface.

Key Features of Zinc Plated Double Threaded U Bolt with Nut

1. Materials

• Carbon Steel (Grade 4.8, 8.8, or 10.9) – Standard for general-purpose applications.

• Stainless Steel (304 or 316) – For corrosion resistance in harsh environments (marine, chemical industries).

• Galvanized Steel – Additional rust protection for outdoor use.

2. Surface Treatment

• Zinc Plating (Electro or Hot-Dip Galvanized) – Provides corrosion resistance and a shiny finish.

• Additional Options:

  • Yellow Zinc (Zinc Dichromate) – Extra corrosion protection.

  • Black Oxide – Mild rust resistance with a dark finish.

3. Common Specifications

• Thread Size: M6 to M24 (metric), 1/4″ to 1″ (imperial).

• Leg Length: 50mm to 500mm (adjustable based on application).

• Inside Diameter (U-Shape): 10mm to 200mm (varies for pipe/tube size).

• Nut Type: Hex nuts, nylon lock nuts, or flange nuts for vibration resistance.

4. Applications

• Pipe & Plumbing: Securing water, gas, or hydraulic lines.

• Automotive: Exhaust system mounting, suspension components.

• Construction: Structural supports, scaffolding, and cable management.

• Marine & Offshore: Boat rigging, deck fittings.

• Agriculture: Tractor attachments, irrigation systems.

Excellent Case: Securing Exhaust Systems in Heavy-Duty Trucks

Application: A zinc-plated, double-threaded U-bolt with lock nuts is used to clamp the exhaust pipe to the chassis in commercial trucks.

Why It’s Effective:

• Strong Clamping Force: Double threads allow precise tightening, preventing exhaust leaks.

• Vibration Resistance: Lock nuts prevent loosening from engine vibrations.

• Corrosion Protection: Zinc plating resists rust from road salt and moisture.

• Easy Adjustment: Mechanics can fine-tune alignment during installation.

Result: A durable, long-lasting exhaust mounting system that reduces maintenance downtime.

Double-threaded U-bolts with nuts are essential for applications requiring adjustable, high-strength fastening with corrosion resistance. Their versatility makes them indispensable in automotive, construction, and industrial sectors.