Grade 40 High Test Chain - Self Colored, PailsA medium carbon steel chain with higher strength to weight ratio than proof coil. Widely used in industry, construction, agricultural and lumbering operations. Nominal weights and dimensions are subject to a plus or minus tolerance of 4%. Weights are in pounds (Lbs.). Length & Width dimensions are the inside link. Finish: Self Colored FEATURES: Meets NACM 2010 Standards Meets ASTM A413 07 Standards AVAILABLE SIZES: SIZE Wire Diameter Inner Length