lifstar Heavy Duty Trailer Safety Chains 5/16" x 33" Pack of 2 — Welded Alloy Steel, 11,700 lb Breaking Strength

lifstar Heavy Duty Trailer Safety Chain is a pair of welded steel safety chains with a hook on one end, designed to secure trailers with a rated breaking strength up to 11,700 lbs for the 5/16" size.

These lifstar chains are built for towing peace of mind: heat-treated alloy steel links deliver consistent strength and abrasion resistance while the welded construction and integrated hooks simplify attachment. Sold as a set of two 33" chains in 5/16" diameter (other diameters available in the line), they balance strength and flexibility so you can meet Class IV trailer safety requirements without excess weight or bulk.

How strong is this lifstar safety chain and what sizes are available?

The breaking strength depends on the chain diameter: lifstar lists 7,600 lbs for the 3/16" equivalent, 11,700 lbs for the 5/16" model, and 16,200 lbs for the 3/8" version. These figures reflect the chain's tensile breaking capacity rather than its working load limit, which is typically lower for safe towing practices.

• This listing: 5/16" diameter, 33" length per chain, pack of 2, 11,700 lbs breaking strength
• Other diameters in the product family: 3/16" (7,600 lbs) and 3/8" (16,200 lbs)
• Welded links and heat-treated alloy steel for consistent tensile performance

How do I install and use these chains safely?

Connect one end of each chain to the trailer frame and the other to the tow vehicle’s safety chain anchors using the provided hooks. Cross the chains beneath the trailer tongue to create a cradle that can catch the tongue if disconnect occurs, and leave enough slack to allow for turning but not so much that chains drag on the road.

• Attach hooks securely to rated anchor points on both trailer and towing vehicle
• Cross chains under the tongue to limit drop if separation occurs
• Maintain slight slack for turns; avoid letting chains drag on pavement

What materials and construction features keep these chains reliable?

lifstar safety chains are made from heat-treated alloy steel and finished to resist corrosion and wear. Welded links reduce the likelihood of link failure compared with non-welded alternatives, while the hooked termination allows quick connection to standard trailer hardware.

• Heat-treated alloy steel for higher tensile strength and wear resistance
• Welded link construction for reinforced durability
• Hook-on-one-end design for fast, secure hookups to compatible anchors

Will these chains meet legal or regulatory towing requirements?

They are manufactured to meet the strength expectations for Class IV-style safety chains when sized appropriately. Check local and state towing regulations for required working load limits and attachment methods, and verify your vehicle and trailer manufacturer recommendations before towing.

• Designed to satisfy common Class IV strength expectations when using correct diameter
• Always verify vehicle/trailer anchorage ratings and local laws before use
• Use correct diameter chain for your towing weight and follow safety load derating

Who is this for? If you haul trailers, small equipment, ATVs, utility trailers, or campers and need a dependable, welded safety chain set that balances strength with manageable weight, the lifstar 5/16" x 33" pair is a practical choice. It's aimed at owners who want quick-hook convenience, clear strength ratings, and durable construction for routine towing tasks. For heavier trailers or commercial uses, consider the larger 3/8" variant or consult a towing professional to confirm the correct chain diameter for your application.