Roller Chain, Chain Construction Riveted Pin, Sidebow Curved, Overall Length 10 ft, Material Steel, Chain Number 40, Chain Overall Width 0.717 in, Roller Diameter 5/16 in, Tensile Strength 3,480 lbf, Pitch 1/2 in, Number of Strands 1, Pin Contruction Riveted Pin, Inside Width 0.313 in, Series Curved Riveted, Working Load Limit 420 lb.