AMERICAN INDUSTRIAL / 1/2" X 20' Grade 70 Chain Assembly w/ Grab Hooks / 11,300 LBS. WORKING LOAD LIMIT / 33,900 LBS. BREAK STRENGTH / VERSATILE AND QUALITY MADE CHAIN ASSEMBLIES OFFER HEAVY DUTY TRANSPORT SECUREMENT. ALL OUR GRADE 70 TRANSPORT CHAIN MEETS OR EXCEEDS NATIONAL ASSOCIATION OF CHAIN MANUFACTURES (NACM) STANDARDS.