"MADE OF HEAT-TREATED ALLOY STEEL AND CADMIUM OR ZINC ELECTROPLATED HARDWARE,ULTIMATE CAPACITY 50000LB IN TENSION BETWEEN SWIVEL LOCKS,MAY BE USED FOR END TO END OR SIDE BY SIDE CONNECTION OF MODULAR ISO CONTAINERS,OPERATING THREADS AND SWIVEL POINTS MUST BE KEPT LUBRICATED WITH A GENERAL PURPOSE MOLY-DISULFIDE GREASE"