480pc Stainless Steel Lock Washer Assortment Kit M3–M10

480-Piece 304 Stainless Steel Lock & Spring Ring Washer Assortment

Keep every nut, bolt, and screw fastened tight with this comprehensive 480-piece washer assortment. Built from premium 304 stainless steel, these lock washers and spring ring washers deliver lasting durability and corrosion resistance — ideal for home repairs, automotive projects, metalworking, and workshop use alike.

Key Features

• Premium 304 Stainless Steel: Each washer is crafted from grade 304 stainless steel for outstanding strength, rust resistance, and long-term reliability in demanding environments.
• Versatile Size Range: Includes lock washers and flat washers in sizes M3, M4, M5, M6, M8, and M10 — a single kit to cover nearly every fastening need.
• Secure Load Distribution: The optimized surface area of each washer evenly spreads bolt and screw load, preventing the fastener head from tearing through material and ensuring a firm, secure fit.
• Solid Bearing Surface: Each washer features a solid bearing surface that protects the base material from damage and keeps nuts and bolts firmly locked in place.
• Convenient Organised Storage: The entire set arrives in a sturdy, divided plastic storage box with clearly labelled compartments — so you can find the right size instantly and keep everything neatly organised.
• 480-Piece Value Set: An exceptional quantity in one box, so you'll always have the right washer on hand for any repair or project.

Specifications

• Material: 304 Stainless Steel
• Total Pieces: 480 pcs
• Sizes Included: M3, M4, M5, M6, M8, M10
• Thickness: 4 mm
• Storage: Divided plastic compartment box
• Country of Origin: Made in China

Perfect For

• Home repair and DIY projects
• Automotive and mechanical maintenance
• Workshop and metalworking applications
• Plumbing, electrical, and construction fastening tasks
• Keeping a well-stocked hardware toolkit

Looking for more workshop and DIY essentials? Check out our Precision Japanese Double-Edged Hand Saw and our Professional Heavy-Duty Pruning Shears for your next project.

Note: Due to manual measurement, there may be a minor size variance of 1–2 mm. Colour may vary slightly from images due to monitor and lighting differences.

Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: What sizes are included in the 480-piece stainless steel washer assortment kit?

A: The kit includes both lock washers and flat/spring ring washers in six metric sizes: M3, M4, M5, M6, M8, and M10, giving you a comprehensive selection for a wide range of fastening applications.

Q: Are these washers suitable for outdoor or high-moisture environments?

A: Yes. Made from 304 stainless steel, these washers offer excellent corrosion and rust resistance, making them well-suited for outdoor, automotive, and other environments where moisture exposure is a concern.

Q: How are the washers stored and organised in the box?

A: The assortment comes in a sturdy plastic storage box with divided compartments, one for each size, so you can quickly identify and retrieve the correct washer without digging through a loose pile.

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.