Description:The inflexible coupling is ninety diploma solving design, and it's constant via four mechanical device screws.Widely used in motor, hardware, mold, mechanical transmission occasions.Specification:Material: 45# steel (GB)Color:SilverLength: 22mmOuter diameter: 14mm,16mmType:4mm-4mm,6mm-6mm,6mm-8mm,8mm-8mm,8mm-10mm(optional)Screw Hole Diameter: 4mmTransfer Bore Diameter: Multiple SpecificationPackage Includes:Coupling x 1Screw x 4Wrench x 1Note:1. The genuine coloration of the object could also be slightly assorted from the images proven on web content caused by many factors reminiscent of brightness of your computer screen and lightweight brightness.2. Please allow slight manual size deviation for the data.