Specification Brand : Ruland BulletPoint1 : Precision honed bores on straight bore couplings for superior fit and torque transmission.Does not mar the shaft BulletPoint2 : Proprietary Nypatch anti-vibration hardware prevents galling, maintains high holding power, and allows for multiple screw insertions BulletPoint3 : 1215 lead-free steel with proprietary black oxide finish for increased holding power and corrosion resistance BulletPoint4 : Hardware tests beyond ANSI standards for maximum torque capabilities BulletPoint5 : Hardware exceeds ANSI standards for maximum torque capabilities. Ruland rigid couplings are carefully made from select North American bar stock in our Marlborough, Massachusetts factory and are RoHS3 and REACH compliant. ExternallyAssignedProductIdentifier1 : 634529004609 ExternallyAssignedProductIdentifier2 : 0634529004609 ExternallyAssignedProductIdentifier3 : 00634529004609 ItemName : Ruland CLX-6-4-F One-Piece Clamping Rigid Coupling, Black Oxide Steel, 3/8" Bore A Diameter, 1/4" Bore B Diameter, 7/8" OD, 1-3/8" Length ItemPackageDimensions_Height : 1.778 centimeters ItemPackageDimensions_Length : 3.048 centimeters ItemPackageDimensions_Width : 1.778 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : beam-couplings Manufacturer : Ruland Manufacturing Material : Black Oxide Steel ModelNumber : CLX-6-4-F NumberOfItems : 1 PartNumber : CLX-6-4-F ProductDescription : 'Rigid Shaft Coupling, One Piece Clamp Type, Without Keyway, Bore Dia 3/8 x 1/4 In, Overall Length 1 3/8 In, Outside Dia 7/8 In, Clearance Dia 1.033 In, Screw Size #6-32 In, Max Torque 475 In-Lb, Black Oxide Steel' ProductSiteLaunchDate : 2011-10-28T15:43:07.184Z Size : 1/4 inches StreetDate : 2017-05-15T00:00:01Z Style : Modern SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1