uxcell 5mm to 6mm Bore Rigid Coupling Set Screw L25XD14 Aluminum Alloy,Shaft Coupler Connector for 3D Printers, Motor Accessories,Blue,2pcs

8 pcs screws designThread Size: M4Color: BlueMaterial: Aluminum AlloyConnection Diameter: 5mm to 6mmTotal Length: 25mm /0.98 inchOutside Diameter : 14mm/ 0.55 inchThrough Angle: 180 Degree Package List:2 Pcs x Rigid Shaft Coupler8 Pcs x M4 ScrewsDescription:Made from aluminum alloy material to reduce inertiaRigid coupling, high torque with rigidity, low inertia and excellent sensitivityNo rotation gap, elastic action can make up for symmetrical angular misalignmentMaintenance-free, oil proof and corrosion resistanceSuitable for model car, model boat, hardware, , mechanical drive situations etc