480Pcs 304 Stainless Steel Lock Washers M2–M12 Spring Washer Kit
480Pcs 304 Stainless Steel Lock Washers M2–M12 Spring Washer Kit
480-Piece 304 Stainless Steel Lock Washer Assortment – M2 to M12
Keep your projects fastened tight with this comprehensive set of 480 stainless steel lock (spring) washers. Spanning sizes M2 through M12, this all-in-one assortment covers the most common fastener sizes used in automotive, machinery, electronics, and general DIY applications. Made from premium 304 stainless steel, each washer delivers outstanding corrosion resistance, long-lasting durability, and reliable tension to prevent loosening from vibration or thermal cycling.
Made in Mainland China.
Key Features
- 480 pieces total — a generous quantity covering M2, M3, M4, M5, M6, M8, M10, and M12 sizes
- 304 Stainless Steel — excellent rust and oxidation resistance for indoor and outdoor use
- Spring / split-lock design — helical split creates spring tension that locks fasteners in place, resisting vibration-induced loosening
- Wide application — ideal for automotive repair, machinery maintenance, electronics, plumbing, and general home improvement
- Assorted sizing — no need to buy multiple packs; this one kit handles your most common fastener needs
- Organised storage — conveniently sorted for quick size identification and easy access
Specifications
| Material | 304 Stainless Steel |
| Quantity | 480 pieces |
| Sizes Included | M2, M3, M4, M5, M6, M8, M10, M12 |
| Type | Split Lock / Spring Washer |
| Finish | Natural stainless |
| Country of Origin | Mainland China |
Perfect For
- Automotive and vehicle maintenance
- Industrial machinery assembly and repair
- Electronics and appliance assembly
- Plumbing and pipe fittings
- Home improvement and DIY projects
- Bicycle and motorcycle maintenance
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Frequently Asked Questions
Q: What sizes of lock washers are included in this 480-piece assortment?
A: The assortment includes the most widely used metric sizes: M2, M3, M4, M5, M6, M8, M10, and M12, giving you a broad range suitable for the majority of automotive, machinery, and DIY fastening tasks.
Q: Why are 304 stainless steel lock washers better than standard steel washers?
A: 304 stainless steel offers superior corrosion and oxidation resistance compared to standard carbon steel, making these washers suitable for both indoor and outdoor environments, including humid or wet conditions where ordinary steel would rust quickly.
Q: How does a spring (split-lock) washer prevent fasteners from loosening?
A: The helical split design creates a spring-like tension when compressed between the nut/bolt head and the surface. This tension bites into both surfaces and counteracts vibration and thermal expansion, significantly reducing the risk of fasteners backing out over time.
Q: Are these washers suitable for use in automotive applications?
A: Yes. The M2–M12 size range and 304 stainless steel construction make this assortment well suited for automotive repair and maintenance tasks, including engine bay work, underbody repairs, and accessory mounting where reliable fastener retention is essential.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.