Specification Brand : Climax Metal BulletPoint : Price for Pack of 25 pcs BulletPoint1 : Couplings are widely used in fans, 3D printers, DIY robots, CNC machines, stepper motors, etc. Similar to rigid clamp couplings, shaft couplings are used to securely attach bearings and sprockets to shafts and are used in motor and transmission components. Suitable for car models, ship models, hardware, mechanical transmission occasions, etc. BulletPoint2 : Connection Diameter: 6mm to 6mm; Screw Thread Size: M3*0.5; Total Length: 20mm / 0.79inch; Outer Diameter: 9mm / 0.35inch; Material: Brass; Package: 1 Set of Rigid Coupling (Include 10 Pieces of Coupling + 40 Pieces of screws + 2 pieces of English Key) BulletPoint3 : Made of brass, it has good electrical conductivity, high strength, high hardness, integrated structure, maintenance-free, oil and corrosion resistant. Superior seal rigid coupling, high torque, high rigidity, low inertia and excellent sensitivity. There is no rotational play and the elastic effect compensates for the symmetrical angle deviation. BulletPoint4 : Single screw clamp design makes it easy to set objects on the shaft and control the holding capacity of the coupling. BulletPoint5 : The rigid type practically does not allow eccentricity and must be fully adjusted during use. Please allow for minor errors due to manual measurement. ItemName : Climax Metal GH2C-137-B, GH2C-Series Recessed Screw Collar, Steel, Black Oxide (Pack of 25 pcs) ItemPackageDimensions_Height : 1.5 centimeters ItemPackageDimensions_Length : 9 centimeters ItemPackageDimensions_Width : 6 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : clamp-on-shaft-collars Manufacturer : Climax Metal Material : Steel NumberOfItems : 25 PartNumber : GH2C-137-B ProductDescription : Climax Metal, GH2C-137-B, GH2C-Series Recessed Screw Collar, Steel, Black Oxide, 1-3/8" ID Black Oxide Plated Steel Two-Piece Clamping Collar - Recessed Screw Head. Recessed Screw Head provides an outside surface free of major projections for safety. Design fully engages the shaft without marring. Easily installed where major disassembly would otherwise be required. Greater axial holding power than set screw or one-piece clamping collars. Effective on hard and soft shafts. ProductSiteLaunchDate : 2019-07-30T08:45:55.748Z Style : Modern SupplierDeclaredDgHzRegulation : unknown