Specification Brand : uxcell BulletPoint1 : Product Specification: The #40 roller chain 120 link total length: 5 feet/1.524m, roller diameter: 0.313"/7.95mm, pin diameter: 0.157"/4mm, inner plate height: 0.472"/12mm; pitch: 1/2"/6.35mm; comes with a free chain master link. BulletPoint2 : Material: The single row roller chain is made of high-strength carbon steel and through strict process measures to provide sufficient load capacity and durability. BulletPoint3 : Strict Process Measures: The roller chain links are shot-peened during the production process, which can improve the strength and toughness of the metal. During the chain assembly process, all chain components are oriented ensuring the pins and inner plates are positioned correctly for better chain strength and longer service life. BulletPoint4 : Wide Application: The 25 roller chain is designed to reduce friction, provide higher efficiency and lower wear, and can be used to transmit power and rotational motion. Suitable for mini bikes, scooters, small power tools, handheld power tools, etc., resulting in more efficient use and less wear. BulletPoint5 : Note: Please confirm the chain model you need before purchasing. Regularly checking and cleaning your chain can extend its life. ItemName : uxcell #40/08A-1 Roller Chain 5 Feet 1/2" Pitch Carbon Steel Roller Chains with Free Master Connector Link for Bicycles, Motorcycles, 120 Links ItemPackageDimensions_Height : 1.85 inches ItemPackageDimensions_Length : 10.63 inches ItemPackageDimensions_Width : 4.33 inches ItemPackageQuantity : 1 ItemTypeKeyword : roller-chains Manufacturer : uxcell Material : Carbon Steel ModelNumber : a23120800ux0241 PartNumber : a23120800ux0241 ProductDescription : Product Specification: The #40 roller chain 120 link total length: 5 feet/1.524m, roller diameter: 0.313"/7.95mm, pin diameter: 0.157"/4mm, inner plate height: 0.472"/12mm; pitch: 1/2"/12.7mm; comes with a free chain master links to easily replace or lengthen the existing chain. Material: The single row roller chain is made of high-strength carbon steel and through strict process measures to provide sufficient load capacity and durability. Strict Process Measures: The roller chain links are shot-peened during the production process, which can improve the strength and toughness of the metal. During the chain assembly process, all chain components are oriented ensuring the pins and inner plates are positioned correctly for better chain strength and longer service life. Wide Application: The 40 roller chain is designed to reduce friction, provide higher efficiency and lower wear, and withstand harsh environments and extreme temperatures, and can be used in industry, agricultural machinery, automobile repair, and more, suitable for hanging doors, bicycles, go-karts, motorcycles, small power tools, printing presses, etc. Note: Please confirm the chain model you need before purchasing. Regularly checking and cleaning your chain can extend its life.