Retaining Ring,External,1 mm Thk,PK100, System of Measurement Metric, Location Style External, Thickness 1 mm, Fits Shaft Diameter 9 mm, For Bore Diameter Not Applicable, Fits Groove Diameter 8.6 mm, Fits Groove Width 1.1 mm, Free Inside Diameter 8.4 mm, Clearance Diameter 16 mm, Material Steel, Finish Plain, Material Grade/Class Ungraded, Ring Type External Retaining Ring, Clearance Diameter Type Expanded, Material Quality Standards DIN 471, Pack Size Small Pack