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Home / Washers / 304 Stainless Steel / 65MN Manganese Steel Lock Washer for Round Nuts, Iron Anti-Loosening Washer, Six-Claw Circlip, Locking and Anti-Loosening

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Washers
Origin -
Material 304 Stainless Steel / 65MN Manganese Steel
Product Type Six-Claw Locking Circlip
Application Round Nuts and Shaft Assemblies
Primary Function Anti-loosening and Vibration Resistance
Surface Finish Polished and Corrosion Resistant
Design Style External Six-Claw Tooth
Durability High Tensile Strength
Installation Method Press-fit into Groove
Compatibility Standard Round Nut Sizes
Package Contents Assorted Kit of Lock Washers

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 5/5

Reliable and durable

Purchased these for a custom bike build. The finish is smooth, there are no sharp burrs, and they hold the axle nuts securely. Great value for the price compared to local hardware stores.

A

Anonymous

Mar 25, 2026

Rating: 5/5

Perfect fit for my machinery repair

These six-claw circlips are exactly what I needed to secure the round nuts on my lathe. The manganese steel feels incredibly sturdy, and they snapped into place without bending. No more loosening due to vibration.

A

Anonymous

Mar 24, 2026

Rating: 5/5

Best anti-loosening solution

I have tried standard washers before, but these locking circlips are superior. The six claws grip the nut perfectly. Highly recommended for any high-vibration automotive application.

A

Anonymous

Mar 23, 2026

Rating: 5/5

Solved my vibration issues

My pump assembly kept coming loose until I switched to these lock washers. The design is simple but extremely effective. Installation was straightforward, and they haven't moved an inch since.

A

Anonymous

Mar 21, 2026

Rating: 4/5

Good assortment for the workshop

Having a mix of sizes in the kit is very convenient. The 65MN steel version is tough enough for heavy-duty use. One size was slightly out of spec, but the rest were perfect.

A

Anonymous

Mar 20, 2026

Rating: 4/5

Great quality, slightly tight fit

The stainless steel option is excellent for outdoor equipment where rust is a concern. They were a bit tight to install initially, requiring a good pair of pliers, but once seated, they are rock solid.

5 FAQ

Q: What is the difference between 304 Stainless and 65MN Manganese Steel?

A: 304 Stainless Steel provides superior rust and corrosion resistance, while 65MN Manganese Steel offers higher tensile strength and hardness for heavy-load applications.

Q: Can these be reused after removal?

A: It is generally recommended to use new washers for critical safety applications. However, if removed carefully without deforming the claws, they can be reused for non-critical tasks.

Q: What specific round nut sizes does this kit cover?

A: This specific listing covers standard metric round nut diameters ranging from M10 to M30. Please check the size chart in the product images for exact dimensions.

Q: Are these washers suitable for outdoor marine environments?

A: Yes, if you select the 304 Stainless Steel option, it offers excellent corrosion resistance suitable for marine and outdoor applications.

Q: Do I need special tools to install these six-claw circlips?

A: While specialized circlip pliers are recommended for ease of installation, a sturdy pair of needle-nose pliers can also be used effectively for most sizes.

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