attwood 51-inch Steel Trailer Safety Chain — Class II Zinc-Plated with Spring-Clip Hooks

Attwood 11011-7 is a 51-inch, Class II welded steel trailer safety chain with spring-clip hooks designed to keep trailers secured during towing.

Built for trailers that need dependable secondary retention, this Attwood safety chain combines robust welded links with zinc plating and spring-clip-equipped hooks to reduce the chance of accidental disengagement. Sold individually — and intended to be used two per trailer — this chain meets SAE Class II specifications and is engineered for marine and general towing environments where corrosion resistance and strength matter.

How is this chain constructed to withstand outdoor and marine conditions?

The chain uses welded solid-steel links finished with a weather-resistant zinc plating to resist rust and surface corrosion. Its construction emphasizes durability under load and in wet or salty environments without adding unnecessary bulk.

• Welded solid-steel links for consistent tensile strength
• Zinc-plated finish to slow corrosion in marine settings
• Class II rating aligned with SAE standards for trailer safety

What keeps the hooks from coming loose while towing?

Each end of the chain has a heavy-duty hook fitted with a spring clip that snaps into place, preventing the hook from slipping off under vibration or movement. The clip is simple to engage and adds an extra layer of security without requiring additional tools.

• Spring-clip hook design reduces accidental disengagement
• Hooks sized for standard trailer coupling attachments
• Quick to attach or remove while staying secure during travel

Is this the right length and class for my trailer setup?

At 51 inches, this chain provides ample reach for most conventional trailer hitch and frame configurations while maintaining proper safety slack. As a Class II chain, it fits light- to medium-duty trailers that call for SAE Class II-rated safety chains.

• 51-inch length for common hitch-to-frame distances
• Class II rated for light to medium towing applications
• Note: two chains are required per trailer for compliance and balance

How does Attwood’s experience influence this product?

Attwood has designed and manufactured marine and trailer accessories for over a century, and this chain reflects that heritage through practical materials and dependable performance. The product is made to integrate with other Attwood components and to meet established safety specifications.

• Decades of marine engineering and testing expertise
• Manufactured with attention to regulatory compatibility and durability
• Simple, proven design meant for straightforward installation and long-term use

Who is this for: boat owners, RV and light-trailer owners, and anyone who tows small to medium trailers and wants a rugged, easy-to-use secondary safety connection. If you need a corrosion-resistant, SAE Class II safety chain with secure spring-clip hooks and a 51-inch reach, the Attwood 11011-7 is built to fit those needs and perform reliably in marine and roadside conditions.