: Advantages: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information 2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.3.This collar has a sleeve cup point fixing screw for fixing the collar to the shaft.4.It is made of high-quality stainless steel and has better weldability than ordinary steel after oxidation coating treatment.5.Good axial and radial support performance, durable choice for almost all types of machinery and industries, such as drive shafts, agricultural tools, automotive industry, manufacturing, etc. Specifications:Material: Stainless SteelColor: SilverSize: 6x12x8mm/0.24x0.47x0.31inch(IDxODxThi)Weight: 43g Package include:8 x Hexagon Socket Screws8 x Stainless Steel Shaft Collars