Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Washers
Origin	-
Material	304 Stainless Steel
Standard	GB858
Type	Six-Prong Tab Washer
Finish	Polished Anti-Corrosion
Function	Anti-Loosening & Anti-Rotation
Compatibility	Round Nuts (Castle Nuts)
Hardness	High Tensile Strength
Application	Automotive, Machinery, Industrial Equipment
Corrosion Resistance	Excellent (Rust Proof)
Package Content	Assorted Sizes Kit

6 reviews

Anonymous

Mar 31, 2026

Rating: 4/5

Good quality, fast shipping

Very sturdy washers. I used them on a piece of farm equipment. One size was slightly tighter than expected, but they still worked well after some adjustment.

Anonymous

Mar 19, 2026

Rating: 5/5

Essential for safety

Never reuse old locking washers. These new GB858 standard rings give me peace of mind that the nuts won't vibrate loose. Highly recommended for any mechanical work.

Anonymous

Mar 16, 2026

Rating: 4/5

Solid construction

These are heavy-duty washers. The six-prong design locks very securely. I deducted one star only because the packaging could be better organized by size.

Anonymous

Mar 04, 2026

Rating: 5/5

Exactly as described

Top seller for a reason. The anti-rotation tabs are perfectly sized to slot into the nut grooves. Will definitely buy again when I run out.

Anonymous

Mar 04, 2026

Rating: 5/5

Perfect fit for my engine rebuild

These tab washers are exactly what I needed for securing the round nuts on my project car. The stainless steel is high quality and the prongs bend easily without snapping.

Anonymous

Mar 04, 2026

Rating: 5/5

Great value kit

The assortment covers most common sizes I encounter in my workshop. The metal feels premium and shows no signs of rust after a few months of outdoor use.

5 FAQ

Q: Can these be reused after removal?

A: It is generally recommended to replace tab washers after removal as bending the tabs back can weaken the metal and compromise locking ability.

Q: Do I need special tools to install these?

A: No special tools are required. You can bend the tabs into the nut slots using a standard flathead screwdriver or a small hammer.

Q: Are these washers compatible with metric round nuts?

A: Yes, the GB858 standard corresponds to metric sizing commonly used with round castle nuts.

Q: What is the thickness of the medium size washer?

A: The medium size typically has a thickness of 2mm, but please refer to the specific size chart in the product images for exact dimensions.

Q: Is this suitable for marine environments?

A: Yes, since these are made from 304 Stainless Steel, they offer excellent resistance to rust and corrosion in marine conditions.

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