External Tooth Star Lock Washers: Material: Carbon Steel; Surface Treatment: Zinc Finish; Inner Dia: M4; Outer Dia: 8mm/0.31-inch; Color: Silver Tone; Package Content: 40pcs x External Tooth Star Lock Washers
Material: Carbon steel, zinc finish, high hardness, corrosion resistance, wear resistance, smooth and bright appearance, and strict standard workmanship so that it can be used for a long time.
Features: The external tooth lock washer applies spring force between the fastener head and the base material, generating more friction and rotational resistance. The external tooth structure of the washer can evenly distribute the tightening force of the bolt to the connected parts. Hold the gasket firmly against the substrate.
Easy Installation: The external tooth starlock washers can be fixed on the shaft with simple pressure or rotation during installation. Installation is simple and convenient.
Application: It is widely used in various screw fastening applications and is suitable for various mechanical, electronic, construction, automotive, and other connecting equipment and industrial production industries.
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