Specification Brand : Ruland BulletPoint1 : Precision honed bores for superior fit and torque transmission. Does not mar the shaft. Keyways are used for additional torque transmission capabilities and to prevent slippage on the shaft. BulletPoint2 : Proprietary Nypatch anti-vibration hardware prevents galling, maintains high holding power, and allows for multiple screw insertions. Nypatch significantly reduces installation time as no additional screw treatment is needed prior to use. BulletPoint3 : Made from 303 stainless steel with hardware of like material for high corrosion resistance. BulletPoint4 : Hardware tests beyond ANSI standards for maximum torque capabilities BulletPoint5 : Ruland rigid couplings are carefully made from select North American bar stock in our Marlborough, Massachusetts factory and are RoHS3 and REACH compliant ExternallyAssignedProductIdentifier1 : 634529001752 ExternallyAssignedProductIdentifier2 : 0634529001752 ExternallyAssignedProductIdentifier3 : 00634529050071 ItemName : Ruland CLC-18-18-SS One-Piece Clamping Rigid Coupling with Keyway, Stainless Steel, 1-1/8" Bore A Diameter, 1-1/8" Bore B Diameter, 1-7/8" OD, 3-1/8" Length, 1/4" x 1/4" Keyway Width ItemPackageDimensions_Height : 4.572 centimeters ItemPackageDimensions_Length : 12.954 centimeters ItemPackageDimensions_Width : 4.572 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : beam-couplings Manufacturer : Ruland Manufacturing Material : Stainless Steel ModelNumber : CLC-18-18-SS NumberOfItems : 1 PartNumber : CLC-18-18-SS ProductSiteLaunchDate : 2011-10-28T15:53:35.007Z Size : 1-1/8 inches Style : Modern UnitCount : 1