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Home / Washers / Guwanji Grade 8.8 Dacromet Spring Lock Washer Flat Washer Hex Nut M3 M5 M6 M8 M10

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Washers
Origin -
Material Grade Grade 8.8 Carbon Steel
Surface Treatment Dacromet Coating
Available Sizes M3, M5, M6, M8, M10
Type Spring Lock Washer & Flat Washer Set
Thread Standard Metric (ISO)
Hardness High Tensile Strength
Corrosion Resistance Excellent (Salt Spray Tested)
Application Automotive, Machinery, Construction
Package Content Assorted Kit with Storage Box
Invoice Type VAT Invoice Included

6 reviews

A

Anonymous

Mar 30, 2026

Rating: 5/5

Professional grade hardware

I use these in my machine shop daily. The Grade 8.8 rating holds up well under high torque. Highly recommend for professional applications.

A

Anonymous

Mar 30, 2026

Rating: 5/5

Great assortment kit

Having all these sizes in one box saves so much time. The lock washers provide excellent tension. Will definitely buy again.

A

Anonymous

Mar 24, 2026

Rating: 5/5

Exceeded expectations

Bought these for a DIY garden structure project. They look great and feel very secure. The VAT invoice was provided immediately as promised.

A

Anonymous

Mar 14, 2026

Rating: 5/5

Perfect for automotive repairs

These washers are exactly what I needed for my car suspension work. The Dacromet coating gives me confidence they won't rust anytime soon. Great value for the price.

A

Anonymous

Mar 06, 2026

Rating: 4/5

Solid construction

Very sturdy washers. The finish is smooth and consistent. Just wish there were a few more M6 sizes in the pack as I use those most often.

A

Anonymous

Mar 03, 2026

Rating: 4/5

Good quality, fast shipping

The metal feels solid and the sizing is accurate. I deducted one star because the plastic organizer box was slightly cracked upon arrival, but the washers themselves are perfect.

5 FAQ

Q: Can I get a bulk discount if I order 50 sets?

A: Yes, we offer volume discounts for bulk orders. Please contact our sales team directly through the 'Contact Seller' button for a custom quote.

Q: Is the storage box resealable?

A: Yes, the included storage box features a snap-lock lid to keep the washers organized and prevent spillage when not in use.

Q: Are these washers compatible with stainless steel bolts?

A: Yes, these carbon steel washers can be used with stainless steel bolts, though we recommend ensuring the environment is not highly corrosive to prevent galvanic corrosion over long periods.

Q: What is the thickness of the M8 flat washer?

A: The M8 flat washer in this set adheres to ISO 7089 standards, with a typical thickness of 1.6mm.

Q: Does the Dacromet coating contain hexavalent chromium?

A: No, our Dacromet coating is environmentally friendly and does not contain hexavalent chromium, making it safe for various industrial applications.

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