Check the listing for details. 8Pcs #40-2 Double Chain Offset Half Link Roller 12.7mm Pitch Chain Master Links. Condition: New. Listed at 15.94 USD. Product Package: 8 pcs of connector links for 08A-2/#40-2 industrial roller chain. Total Length: 1.3"/33mm; Roller Diameter: 0.311"/15.88mm; Pin Diameter: 0.156"/3.96mm; Inner Plate Depth: 0.472"/12mm; Pitch: 0.5"/12.7mm.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.