304 Stainless Steel Spring Lock Washer Combination Box: A 900-Piece Assortment for M2 to M12 Fasteners

This 304 stainless steel spring lock washer combination box provides a practical and organised solution for professionals, tradespeople, and serious DIY enthusiasts. The 900-piece assortment covers a wide spectrum of common washer sizes, eliminating the need to purchase individual packs for different projects. With inner diameters specifically ranging from 2mm to 12mm, the set is designed to be compatible with metric bolts and screws from size M2 up to M12. The corrosion-resistant properties of 304 stainless steel make these washers suitable for use in a variety of environments, from workshop benches to outdoor fittings, offering a reliable component for securing threaded fasteners against loosening.

Features and Construction

The core value of this product lies in its comprehensive size range and material choice, packaged for convenience. The combination box system consolidates multiple washer specifications into a single, portable unit, making it a efficient addition to any tool storage solution.

Material and Build

The washers are constructed from 304 stainless steel. This grade of steel is widely recognised for offering a good balance of mechanical properties and resistance to corrosion from many environments, which is a practical advantage for components that may be used in humid conditions, outdoors, or with materials that could cause standard steel to rust. The spring lock design provides the intended function of applying a pre-load to a bolted joint, helping to prevent the fastener from loosening under vibration or dynamic loads.

Size and Practical Fit

The assortment is defined by its precise dimensional ranges. The inner diameter, which must fit over the bolt's shank, spans from 2mm to 12mm. This directly corresponds to standard metric fastener sizes from M2 to M12. The accompanying outer diameters range from 2.4mm to 13mm, and the thickness—which affects the spring force and stack height—varies from 1mm to 6.2mm. This triple-parameter range ensures that for a given bolt size, you can select a washer with appropriate proportions for the application.

Uses and Placement

This washer set is designed for scenarios where having the right size component immediately available saves time and ensures a secure fit. Its applications bridge professional maintenance, equipment assembly, and detailed home projects.

Event or Professional Use

For tradespeople such as electricians, mechanics, or facility maintenance technicians, this combination box serves as a portable parts library. It allows for quick on-site repairs or installations of electrical panels, machinery, vehicles, or plumbing fixtures where vibration resistance is needed. The stainless steel construction is also suitable for food service equipment repair or marine applications where resistance to moisture and certain chemicals is beneficial.

Everyday Home Use

For the home workshop, this set supports a vast array of DIY projects. Whether you are assembling furniture, repairing bicycles, building custom shelving, or working on electronics, the range of sizes increases the likelihood of having a matching washer. It removes the frustration of a project stall due to a missing specific washer size, making it a practical investment for anyone who regularly undertakes hands-on tasks.

Benefits and Buying Value

The primary advantages of this product are its versatility, material suitability, and organisational efficiency. It represents a shift from buying washers individually for each job to having a curated selection on hand.

Reuse and Low Maintenance

The 304 stainless steel material contributes to the potential for reuse. Washers can often be removed and reused in other projects if they are not damaged, and their corrosion resistance helps them retain their condition in storage. The combination box itself aids organisation, keeping the different sizes together and protected, which reduces loss and makes inventory checks simple. There are no complex care instructions; simply store the box in a dry place.

Why Choose This Product

Choosing this washer combination box means opting for preparedness and efficiency. Compared to managing numerous small packs or loose washers, this single box saves storage space and search time. The specified size ranges provide clear guidance on what fastener sizes it supports, allowing you to match it confidently to your common needs. The value is in having a broad, ready-to-use selection made from a suitably durable material, all contained within one organised unit that integrates seamlessly into a toolbox or on a workshop shelf.