What Is a Drag Chain?

Drag chains can be used for a wide variety of applications. Depending on the type of chain, the manufacturing requirements and specifications for use can vary. Batch testing of the chains is standard to ensure they are in compliance.
Grade 70 chains should only be used for lashing and dragging purposes, and should be constructed to comply with Australian Standard 4344 guidelines. They should never be used for lifting. Chains that are T rated should only be used for lifting. Chains and associated components that are inappropriately used can damage property and potentially cause injury or death. These types of chains are sometimes utilized in conjunction with shackle screw pins, snatch straps and tree trunk protectors.
Some of the most durable kinds of chains are made from steel and are gold passivated to protect them from corrosion and keep them clean. This can help increase their useful life, particularly if they are regularly exposed to moisture.
Chain kits including 5m of 8mm Grade 70 chains, one clevis cradle grab hook and one lug-link can be especially useful. Kits that come with a bucket and reseal-able lid for storage can be very convenient.
A cradle grab hook is another very useful feature for a drag chain and can substantially strengthen it. When under intense pressure, a non-cradle hook can cause the chain to buckle, which can severely impact use.