7 Sizes 320PCS Internal Tooth Starlock Washers,Quick Speed Locking Washers, Push

High Quality Internal Tooth Starlock Washers Kit | Set Includes 7 Most Used Sizes: M3 M4 M5 M6 M8 M10 M12,320pcs in box | Made of 65Mn metal steel, black oxide finish Anti-corrosion and durable | Wide Application: used in machinery equipment, industrial production of shock absorption and insulation, can meet your different needs in daily life | No groove required—press these rings onto the end of a shaft. Use them on unhardened shafts that are softer than the push ring. The ring bites into the metal to form an interference grip. have teeth that dig into the shaft material, so expect minor scratching. Use a push nut installation tool to install rings, or install them manually.