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 : Two-piece styles have opposing hardware for a balanced design. BulletPoint3 : 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. BulletPoint4 : Made from 303 stainless steel with hardware of like material for high corrosion resistance. Machined to a fine burr free finish. 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 : 634529022535 ExternallyAssignedProductIdentifier2 : 0634529022535 ExternallyAssignedProductIdentifier3 : 00634529022412 IncludedComponents : Product & Instructions Guide ItemName : Ruland SPC-16-8-SS Two-Piece Clamping Rigid Coupling with Keyway, Stainless Steel, 1" Bore A Diameter, 1/2" Bore B Diameter, 1-3/4" OD, 3" Length, 1/4" x 1/8" Keyway Width ItemPackageDimensions_Height : 1 inches ItemPackageDimensions_Length : 7 inches ItemPackageDimensions_Width : 5 inches ItemPackageQuantity : 1 ItemTypeKeyword : beam-couplings Manufacturer : Ruland Manufacturing Material : Stainless Steel ModelNumber : SPC-16-8-SS NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : SPC-16-8-SS ProductDescription : 'Rigid Shaft Coupling, Two Piece Clamp Type, With Keyway, Bore Dia 1 x 3/4 In, Overall Length 3 In, Outside Dia 1 3/4 In, Clearance Dia 2.049 In, Screw Size 1/4-28 In, Keyway Width 1/4 x 3/16 In, Max Torque 4000 In-Lb, Black Oxide Steel' ProductSiteLaunchDate : 2011-10-28T15:50:32.933Z Size : 1/2 inches Style : Modern SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1