Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Washers
Origin	-
Material	304/316 Stainless Steel
Finish	Black Oxide Coated
Type	Spring Washer / Retaining Ring
Available Sizes	M1.6, M2, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20
Hardness	HV 400-500
Corrosion Resistance	High (Suitable for outdoor use)
Package Quantity	100 Pieces per Pack
Thread Standard	Metric (ISO)
Application	Automotive, Machinery, Electronics, DIY Projects
Country of Origin	Imported

6 reviews

Anonymous

Mar 23, 2026

Rating: 5/5

Exactly as described

Needed specific M3 black washers for a computer mod. These fit perfectly and the black coating didn't chip when tightening the screws.

Anonymous

Mar 22, 2026

Rating: 5/5

Great for marine applications

Using the 316 grade on my boat trailer. So far no signs of corrosion after a few months of exposure to salt water. Highly recommend for marine use.

Anonymous

Mar 20, 2026

Rating: 5/5

Excellent value

You get a lot of pieces for the price. I keep a variety pack of these in my workshop. The elasticity is consistent across the batch I received.

Anonymous

Mar 13, 2026

Rating: 3/5

Decent but mixed sizes in bag

The quality of the steel seems good, but my bag of M4 had a few M3 washers mixed in. Had to sort them out manually. Otherwise, they work fine.

Anonymous

Mar 07, 2026

Rating: 4/5

Good quality, fast shipping

These washers are solid. I used them for an outdoor electrical box installation. The 316 steel should hold up well against rust. One star off because the packaging was slightly crushed, but the parts were fine.

Anonymous

Mar 05, 2026

Rating: 5/5

Perfect fit for my project

Ordered the M6 size for a custom bike build. The black finish looks sleek and matches my other hardware perfectly. Great tension on the spring washers.

5 FAQ

Q: Are these washers suitable for high-temperature environments?

A: Yes, 304 and 316 stainless steel can generally withstand temperatures up to 800°C (1472°F) without losing significant structural integrity, making them suitable for most high-heat applications.

Q: Can I use these with aluminum components?

A: Yes, but we recommend using an anti-seize compound or a barrier washer to prevent galvanic corrosion between the stainless steel and aluminum over long periods.

Q: Will the black coating wear off when tightened?

A: Minor scuffing may occur at the contact points during extreme tightening, but the black oxide treatment is durable and designed to resist flaking under normal installation torque.

Q: Do you sell these in bulk quantities over 1000 pieces?

A: Yes, we offer bulk pricing for orders exceeding 1000 pieces. Please contact our sales department directly through the 'Contact Seller' button for a custom quote.

Q: What is the difference between the 304 and 316 versions?

A: 316 stainless steel contains molybdenum, which provides superior corrosion resistance, especially against chlorides like salt water, compared to 304. For indoor or dry environments, 304 is usually sufficient.

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