SENQCIA Inspire Series SBR riveted Double Pitch roller chain is manufactured in accordance with the ASME/ANSI B29.4 American roller chain standard. These solid bushing/solid roller chains offer exceptional performance and long life in a wide variety of applications. Nickel plating helps prevent rust in many wet and mildly corrosive environments. Solid cold forged bushings extend chain wear life and greatly reduce break-in wear. Packaged chains are supplied with a necessary connecting link to join the ends. Offset links (used to shorten or lengthen a chain strand by 1 pitch) are also available and sold separately. This chain is packaged in a 10ft box.