Roller Chain, Chain Construction Riveted Pin, Overall Length 10 ft, Material Steel, Chain Number 40, Chain Overall Width 0.717 in, Roller Diameter 5/16 in, Tensile Strength 4,250 lbf, Pitch 1/2 in, Number of Strands 1, Pin Contruction Riveted Pin, Inside Width 0.313 in, Series Blank, Working Load Limit 660 lb, Features Nickel-Plated Chains Provide Acceptable Performance Where Equipment Must Operate in Mildly Corrosive Environments, Finish Nickel Plated, Heavy Series No