500 Pcs Black Plastic Washers, Locking Washers, Fasteners, Self-Locking Washer Assortment, Mechanical Washer M2.5 M3 M4 M5 M6 M8 M10

【PERFORMANCE】: The locking washer increases the contact area between the bolt or nut and the workpiece surface, reducing wear, friction, and rotational resistance, preventing loosening.

【QUALITY】: Made of nylon and plastic, offering good insulation, wear resistance, corrosion resistance, and strength for durability.

【APPLICATIONS】: Used in the semiconductor, automotive, aerospace, and interior design industries.

Quick repair of electrical connections, household and commercial equipment, automobiles, ships, generators, machinery, and appliances.

【STORAGE BOX】: Comes with a free storage box with classification label instructions, convenient for quick retrieval, storage, and transport.

【SIZE】: 500 self-locking washers - M2.5/M3/M4/M5/M6/M8/M10, to meet your needs.