Snubber Chain Hooks Revisited - Practical Sailor
2017-1-16u2002·u2002Grade 30 proof-coil chain (G30) sized at 1/4-inch has a working load limit (WLL) of 1,300 pounds and a minimum breaking strength (MBS) of 5,200 pounds. G30 chain at 5/16-inch has a WLL of 1,900 pounds and MBS of 7,600 pounds. In each case, this represents a 4:1 safety factor. G43 high-test chain is rated with a 3:1 safety factor.
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