Specification Brand : Ruland BulletPoint1 : Precision honed bores on straight bore couplings for superior fit and torque transmission. Does not mar the shaft. Two-piece styles have opposing hardware for a balanced design. 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 1215 lead-free steel with proprietary black oxide finish for increased holding power and corrosion resistance. BulletPoint4 : Machined to a fine burr-free finish. BulletPoint5 : Hardware exceeds DIN 912 12.9 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. Color : Black ExteriorFinish : Steel ExternallyAssignedProductIdentifier1 : 634529018545 ExternallyAssignedProductIdentifier2 : 0634529018545 ExternallyAssignedProductIdentifier3 : 00634529018545 FinishType : Black Oxide ItemName : Ruland MSPX-50-50-F Two-Piece Clamping Rigid Coupling, Black Oxide Steel, Metric, 50mm Bore A Diameter, 50mm Bore B Diameter, 85mm OD, 124mm Length ItemPackageDimensions_Height : 11.176 centimeters ItemPackageDimensions_Length : 11.43 centimeters ItemPackageDimensions_Width : 15.24 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : beam-couplings Manufacturer : Ruland Manufacturing Material : Steel MeasurementSystem : Metric MetalType : Alloy Steel ModelNumber : MSPX-50-50-F NumberOfItems : 1 PartNumber : MSPX-50-50-F ProductSiteLaunchDate : 2011-10-28T16:03:40.782Z Size : 50 millimeters Style : Modern UnitCount : 1 UnspscCode : 31163009