2 pack of 5/16" x 20' Heavy Duty Grade 70 transport binder chains. Made using high-strength, low-alloy carbon steel and coated with a yellow zinc chromate finish for corrosion protection and quick identification as grade 70 tie down chains. The high quality, standard link 5/16" size chain is heat-treated, and strength tested for superior quality.All our grade 70 chains are embossed with the proper markings to meet NACM standards. Fitted with forged carbon steel clevis grab hooks attached at both ends of the 20-foot length.