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Home / Washers / Black 304 Stainless Steel Spring Washer Split Spring Washer Shim Thickened Washer M2 M3 M4 M5 M6-M33

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Washers
Origin -
Material 304 Stainless Steel
Finish Black Oxide Coated
Type Split Spring Washer
Available Sizes M2, M3, M4, M5, M6 to M33
Hardness High Tensile Strength
Corrosion Resistance Excellent (Indoor/Outdoor)
Application Automotive, Machinery, Electronics
Package Type Resealable Plastic Bag
Origin Manufactured in ISO Certified Facility
Warranty 30-Day Satisfaction Guarantee

6 reviews

A

Anonymous

Mar 30, 2026

Rating: 5/5

Great value for bulk purchase

Bought the mixed pack for my workshop. Having various sizes from M2 to M10 on hand is incredibly convenient. Quality is consistent across all sizes.

A

Anonymous

Mar 27, 2026

Rating: 5/5

Perfect fit for my automotive project

These black washers look great and fit perfectly on my M6 bolts. The spring tension is just right to prevent loosening due to vibration.

A

Anonymous

Mar 27, 2026

Rating: 4/5

Good quality, fast shipping

Ordered the M4 size for a computer build. They are sturdy and the black finish matches my components well. One washer had a slight scratch but it doesn't affect function.

A

Anonymous

Mar 26, 2026

Rating: 4/5

Solid construction

The thickened design provides extra durability. I use them on heavy machinery where standard washers sometimes fail. Very satisfied with the performance.

A

Anonymous

Mar 22, 2026

Rating: 5/5

Exactly as described

The product matches the description perfectly. The black coating is even and professional looking. Will definitely order again for future projects.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Excellent corrosion resistance

Using these on an outdoor gate mechanism. After three months of rain, there is no sign of rust. Highly recommend for outdoor applications.

5 FAQ

Q: Do you offer these in metric and imperial sizes?

A: This specific listing is for metric sizes (M2-M33). We do carry imperial split washers in a separate listing; please search our store for 'Imperial Spring Washers'.

Q: Can I return the package if I ordered the wrong size?

A: Yes, provided the package is unopened and in original condition, you can return it within 30 days for a full refund or exchange.

Q: What is the exact thickness of the M6 washer?

A: The M6 thickened spring washer has a nominal thickness of 1.6mm, which is slightly heavier than standard DIN 127 specifications for added durability.

Q: Are these washers suitable for use in saltwater environments?

A: While 304 stainless steel offers good corrosion resistance, for constant submersion in saltwater, we recommend our 316 grade stainless steel washers for superior protection.

Q: Does the black coating wear off easily during installation?

A: The black oxide finish is baked on for durability. Minor scuffing may occur at contact points during high-torque installation, but it generally remains intact.

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