20pcs M3 M5 M6 M8 M10 Internal Tooth Star Locking Washer Lock Washers Push On Locking Speed Clip 65Mn Black Oxide Finish Description: Starlock Washer provides spring force between two attachments and grip shaft firmly in place. These push-on washers create a permanent installation and will lock firmly. 65Mn steel is a perfert material for spring washer due to its good strength. Black oxide finish gives better corrosion resistant performance in dry environments. Widely used in machinery equipment, industrial production of shock absorption, bearings, machinery, etc. The Starlock Washers have teeth that dig into the shaft material, so expect minor scratching. Specification: Washer Type: Starlock Washer Material: 65Mn Spring Steel Finish: Black Oxide Package Content: 20pcs x Star Locking Washer Size: Size M3 M5 M6 M8 M10 FitShaftOuterDia 3mm 5mm 6mm 8mm 10mm InnerDia 2.5mm 4.3mm 5.4mm 7mm 9.2mm OuterDia 9mm 12mm 14mm 18mm 20mm Thickness 1.2mm 1.5mm 1.9mm 2mm 2.2mm M3 M5 M6 M8 M10 _x000D_