FITHOIST G80 Trailer Safety Chains 35" 2-Pack — 3/8" Clevis Snap Hooks, Zinc-Plated Heavy-Duty Tow Chains

FITHOIST G80 35-inch trailer safety chains are a pair of heat-treated, grade 80 alloy tow chains with 3/8" clevis snap hooks designed to keep a trailer connected if the hitch fails.

These 35-inch safety chains from FITHOIST are built from high-strength, heat-treated Grade 80 alloy and finished with zinc plating for corrosion resistance and clear DOT visibility. Supplied as a two-pack with forged clevis snap hooks that carry standard NACM markings, they’re intended to meet common roadside inspection expectations while offering the durability needed for heavy towing use.

How durable are these chains for heavy towing?

The chains use Grade 80 alloy, which delivers a higher strength-to-weight ratio than lower-grade links. Heat-treated links and forged hooks increase resistance to fatigue and abrasion under load.

• Material: heat-treated Grade 80 alloy for increased tensile strength
• Link size: 3/8" standard link thickness for heavy-duty applications
• Finish: zinc-plated surface for rust and corrosion protection
• Manufacturing: strength-tested and embossed with NACM-compliant markings

What fittings and safety features are included?

Each chain terminates with a forged clevis snap hook that includes a safety clip to reduce accidental detachment. Hooks and chains are stamped per NACM standards so they’re recognizable during inspections.

• Hook type: forged clevis snap hook with safety latch
• Markings: embossed code markings to meet inspection requirements
• Connection design: chain-to-hook geometry reduces lateral stress at the attachment point
• Pack: two identical chains for dual-point trailer connections

What load ratings and safety factors should I expect?

Grade 80 transport chain provides a substantial working strength when used within its rated limits. Always follow the stamped Working Load Limit (WLL) on the product and maintain the manufacturer-recommended safety factor for towing applications.

• Grade: G80 — higher safe working load than lower grades
• Safety factor: designed with industry-standard safety margins; check stamped WLL for exact limits
• Inspection: regular visual and tactile inspections recommended before use
• Warning: never exceed the chain’s stamped working load limit

How do I maintain and inspect these chains for safe use?

Routine inspection and simple maintenance extend service life and reliability. Look for cracked welds, bent links, excessive wear, or corroded areas and replace chains immediately if damage is found.

• Inspection: check hooks, link deformation, and stamped markings before each trip
• Cleaning: remove dirt and road salt; dry thoroughly to avoid corrosion
• Lubrication: light coating of rust inhibitor on pivot points if stored in harsh environments
• Storage: hang or lay flat in a dry place to prevent kinks and stress concentration

Who is this for: The FITHOIST G80 35" trailer safety chain 2-pack suits owners and operators who tow trailers, boats, or equipment and need a robust, inspection-friendly backup connection. It’s appropriate for DIYers fitting safety chains on a utility or boat trailer, fleet managers ensuring compliance during roadside checks, and anyone who prefers Grade 80 strength and corrosion-resistant finishes for heavy-duty towing tasks. Always confirm the chain’s stamped Working Load Limit and use within rated capacities.