Roller Chain, Chain Construction Riveted Pin, Overall Length 10 ft, Material Steel, Chain Number 40, Chain Overall Width 0.7 in, Roller Diameter 5/16 in, Tensile Strength 3,125 lbf, Pitch 1/2 in, Number of Strands 1, Pin Contruction Riveted Pin, Inside Width 0.312 in, Series Standard Riveted, Working Load Limit 810 lb, Features Factory Preloading, Lube-Grooved Bushings, and Prelubrication Minimize Wear Elongation, Fully Interchangeable With Other ANSI Roller Chains, Finish Natural