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Home / Washers / 304 Stainless Steel Spring Lock Washers Anti-Loose Anti-Slip Extra Thick Metal Spring Washers M2 M3 M4 M5 M6 M8-M36

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Washers
Origin -
Material 304 Stainless Steel
Surface Finish Polished
Hardness HRC 43-52
Available Sizes M2, M3, M4, M5, M6, M8 to M36
Thickness Extra Thick Design
Function Anti-Loose and Anti-Slip
Corrosion Resistance High (Suitable for Outdoor Use)
Package Type Resealable Plastic Box
Standard DIN 127 / GB/T 93
Application Machinery, Automotive, and Construction

6 reviews

A

Anonymous

Mar 26, 2026

Rating: 4/5

Good variety of sizes

The kit comes with a good range of sizes. I used the M6 and M8 mostly. They fit perfectly and haven't loosened up after weeks of vibration.

A

Anonymous

Mar 26, 2026

Rating: 5/5

No more loose bolts

Finally found washers that actually prevent loosening on my vibrating equipment. The anti-slip feature works as advertised.

A

Anonymous

Mar 15, 2026

Rating: 4/5

Great value pack

Solid construction and the packaging keeps them organized. Only giving 4 stars because the M2 size was slightly harder to install due to the thickness, but they work well.

A

Anonymous

Mar 14, 2026

Rating: 5/5

Perfect for outdoor equipment

I needed rust-resistant washers for my garden machinery. These have held up well against rain and humidity without any signs of corrosion.

A

Anonymous

Mar 13, 2026

Rating: 5/5

Sturdy and reliable

Very happy with this purchase. The spring tension is strong, ensuring bolts stay tight. Highly recommend for any DIY enthusiast.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Excellent quality for the price

These washers are exactly what I needed for my automotive project. The 304 stainless steel feels very durable and the extra thickness provides great tension.

5 FAQ

Q: Does the package include an assortment of all sizes or just one size?

A: This listing allows you to select specific sizes or an assorted kit. Please check the dropdown menu options when ordering to choose your preferred combination.

Q: Are these washers suitable for marine environments?

A: Yes, made from 304 stainless steel, they offer high corrosion resistance suitable for most marine applications, though 316 grade is recommended for constant saltwater submersion.

Q: Can I use these with aluminum bolts?

A: While physically possible, we do not recommend using stainless steel washers with aluminum bolts long-term due to the risk of galvanic corrosion. Using a barrier coating is advised if mixing metals.

Q: What is the maximum temperature these washers can withstand?

A: 304 Stainless Steel generally maintains its mechanical properties up to approximately 870°C (1600°F) for intermittent service.

Q: Is there a warranty on these products?

A: Yes, all our hardware products come with a 1-year manufacturer warranty against defects in material and workmanship.

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