Roller Chain, Chain Construction Riveted Pin, Overall Length 10 ft, Material Steel, Chain Number 41, Chain Overall Width 0.579 in, Roller Diameter 5/16 in, Tensile Strength 2, 640 lbf, Pitch 1/2 in, Number of Strands 1, Pin Contruction Riveted Pin, Inside Width 0.25 in, Series Standard Riveted, Working Load Limit 500 lb, Features This Single-Strand Roller Chain is Designed to Help Transfer Motion From One Set of Sprockets to Another, Heavy Series No, Includes (1) Connecting Link. This item has been restricted from sale in the following state (s): []