Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Washers
Origin	-
Material	304 Stainless Steel
Standard	GB858
Type	Six-Claw Sun Locking Washer
Surface Finish	Polished
Corrosion Resistance	High (Suitable for outdoor use)
Function	Anti-rotation and locking for round nuts
Compatibility	Designed for standard round slotted nuts
Hardness	HV 200-250
Package Contents	Assorted sizes available in bulk packs
Application	Machinery, automotive, and structural assembly

6 reviews

Anonymous

Mar 24, 2026

Rating: 5/5

Corrosion resistant as advertised

Installed these on an outdoor gate mechanism months ago. Despite rain and humidity, there is zero sign of rust. The stainless steel grade is legitimate.

Anonymous

Mar 21, 2026

Rating: 4/5

Solid construction

Very well made. The claws are sharp enough to bite into the nut without damaging the threads. Only giving 4 stars because I wish they came in a smaller kit for hobbyists.

Anonymous

Mar 17, 2026

Rating: 5/5

Essential for vibration-heavy environments

I use these on my workshop equipment that runs constantly. No more loose nuts! The anti-rotation feature works flawlessly. Highly recommended for industrial use.

Anonymous

Mar 08, 2026

Rating: 5/5

Reliable and durable

Bought these for a custom automotive build. They hold the round nuts firmly in place even under high stress. Will definitely purchase again.

Anonymous

Mar 05, 2026

Rating: 4/5

Good quality, slightly stiff at first

The material feels very durable. They were a bit tight to install initially, but once seated, they provide excellent locking power. Great value for the price.

Anonymous

Mar 05, 2026

Rating: 5/5

Perfect fit for my machinery project

These washers are exactly what I needed. The six-claw design grips the round nut securely, preventing any loosening due to vibration. The 304 stainless steel quality is evident.

5 FAQ

Q: Do I need special tools to install these?

A: No special tools are required. You can install them using a standard hammer to tap the claws into the notches of the round nut after tightening.

Q: Is this sold as a single piece or a pack?

A: This listing is for a bulk pack containing multiple pieces. Please check the 'Size' dropdown menu to select the quantity and specific diameter you need.

Q: Are these washers compatible with metric round nuts?

A: Yes, these GB858 standard washers are designed to fit standard metric round slotted nuts commonly used in machinery.

Q: Can these be used in marine environments?

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

Q: What is the thickness of the washer?

A: The thickness varies depending on the specific diameter size you select. Please refer to the detailed specification chart in the product images for exact dimensions per size.

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