Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Washers
Origin	-
Material	304 Stainless Steel
Surface Finish	Iron Black Coating
Shape	Round with Six-Claw Design
Standard	GB858
Function	Locking and Stopping
Corrosion Resistance	High
Application	Machinery, Automotive, Construction
Hardness	HRC 35-40
Package Type	Bulk Box or Custom Pack
Origin	Factory Direct

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Best washers I've bought

The six-claw mechanism provides superior grip compared to standard washers. Will definitely reorder when we run out.

Anonymous

Mar 25, 2026

Rating: 5/5

Excellent quality for industrial use

These locking washers are exactly what I needed for my machinery project. The six-claw design grips tightly and the black finish looks professional.

Anonymous

Mar 22, 2026

Rating: 4/5

Solid product

Great locking capability. The only reason for 4 stars is that the packaging was a bit damaged upon arrival, though the parts inside were fine.

Anonymous

Mar 20, 2026

Rating: 4/5

Good value, fast shipping

Ordered a large batch for our workshop. Quality is consistent across the batch. One washer had a slight coating imperfection but didn't affect performance.

Anonymous

Mar 13, 2026

Rating: 5/5

Perfect fit for GB858 specs

As an engineer, I appreciate components that meet strict standards. These match the GB858 specifications perfectly. Highly recommended for precision work.

Anonymous

Mar 12, 2026

Rating: 5/5

Durable and reliable

We use these in high-vibration environments and they haven't loosened once. The stainless steel material ensures they won't rust easily.

5 FAQ

Q: Are these washers suitable for outdoor applications?

A: Yes, made from 304 stainless steel with a protective black coating, they offer excellent corrosion resistance for outdoor use.

Q: Does the black coating wear off easily under friction?

A: The iron black coating is heat-treated for durability. While some wear may occur over extreme long-term friction, it does not compromise the locking function.

Q: What sizes are available for this GB858 model?

A: We stock sizes ranging from M6 to M24. Please check the size selector dropdown or contact us for custom sizing options.

Q: Can I get a certificate of material compliance?

A: Absolutely. We provide material test reports (MTR) for all our 304 stainless steel products upon request at checkout.

Q: Is there a minimum order quantity for factory direct pricing?

A: Factory direct pricing applies to orders over 500 units. Smaller quantities are still available at our standard competitive rates.

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