Check the listing for details. 8Pcs #80-2 Double Roller Chain Connecting Links 25.4mm Pitch Chain Master Links. Condition: New. Listed at 37.79 USD. Product Package: 8 pcs of connector links for 16A-2/#80-2 industrial roller chain. Total Length: 1.77"/45mm; Roller Diameter: 0.625"/15.88mm; Pin Diameter: 0.312"/7.92mm; Inner Plate Depth: 0.945"/24mm; Pitch: 1"/25.4mm.Material: The chain links are made of carbon steel, precision machined, strong, and durable.Surface Shot-Peened: The standard chain end connector split links are shot-peened during the production process to improve the strength and toughness of the product and extend the service life of the chain.Easy to use: The links are easy to attach to the drive chain, making it easy to lengthen or shorten the chain; old sprockets can be removed with circlip pliers and removed from the chain. To install a new chain joint, first, insert the pin and snap the spring clip or cotter pin into place.