500 pcs Black Plastic Washers Lock Washers Fasteners, Self-Locking Washer Assortment Mechanical Washer M2.5 M3 M4 M5 M6

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【PERFORMANCE】: The lock washer can increase the contact area between the bolt or nut and the surface of the workpiece, reduce wear, friction and rotation resistance, avoid falling off 【QUALITY】: Nylon and plastic, good insulation, wear resistance, corrosion resistance, strong and durable 【USES】: Used in semiconductor, automotive, aerospace and interior decoration fields Quick repair of electrical connections, household and commercial equipment, automobiles, ships, generators, machinery and appliances. 【STORAGE BOX】: Comes with a storage box with instructions on the classification label, which is convenient for quick search, storage and transportation 【SIZE】: 500 self-locking washers - M2.5/M3/M4/M5/M6/M8/M10, can meet your needs. Returns, Refunds and Replacements Delivery Timeframe Please note that we cannot guarantee the exact date of arrival, and the delivery timeframes (excluding weekends and public holidays) are as follows: For customers in Victoria, approximately 7-10 working days; For customers in NSW, SA, ACT, and QLD, approximately 9-12 working days; For customers in WA, NT, and TAS, approximately 9-12 working days.