Shaft Collar(solid collar,set collar) Features:The most economical method of holding a device on a shaft.For additional holding power the collars can be provided with 2 set screws or variety of set screw types. Available Bore Size: 1/8" through 5", 2mm through 200mm. Available Finishes: Stainless steel Steel-zinc plated Steel-black oxide Steel-unplated Outer packing: cartons with pallets