Twin Clevis Link - 1/4-5/16" - Grade 70 Connecting link connects grade 30, 40, or 70 chain to tractor eyebolts, end links, eye hooks, etc. Break Strength: 18,800 lbs Working Load Limit: 4,700 lbs This item is not load rated for lifting applications Not for use with grade 80 chain or grade 100 chain.