Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Washers
Origin	-
Material	Carbon Steel with Nickel Plating
Finish	Black Oxide and Galvanized
Type	Split Spring Lock Washer
Available Sizes	M2, M3, M4, M5, M6, M8, M10 to M30
Hardness	45-50 HRC
Standard	DIN 127 / ISO 7092
Surface Treatment	Corrosion Resistant Coating
Application	Automotive, Machinery, and Construction
Package Contents	Assorted Kit or Bulk Pack Options
Brand	Jianwei Hardware

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Professional grade quality

I use these in my machine shop daily. They hold up under high vibration and torque. Will definitely order again.

Anonymous

Mar 27, 2026

Rating: 4/5

Solid hardware

The nickel plating gives them a nice shine and extra protection. One washer in the pack was slightly bent, but the rest were perfect.

Anonymous

Mar 16, 2026

Rating: 4/5

Good quality, fast shipping

Ordered the M6 size for a furniture assembly. They work well, though the packaging was a bit loose. Overall satisfied with the purchase.

Anonymous

Mar 08, 2026

Rating: 5/5

Perfect fit for my automotive project

These washers are exactly what I needed. The black finish looks great and they seem very durable. The spring tension is just right for preventing loosening.

Anonymous

Mar 07, 2026

Rating: 5/5

Excellent corrosion resistance

Using these outdoors on a garden structure. After a few months of rain, there is no sign of rust. Highly recommend for outdoor use.

Anonymous

Mar 07, 2026

Rating: 5/5

Great value for money

Bought the assorted kit. Having all sizes from M2 to M10 in one box is super convenient for general repairs around the house.

5 FAQ

Q: Are these washers suitable for stainless steel bolts?

A: Yes, these carbon steel washers can be used with stainless steel bolts, but please ensure the environment is not highly corrosive to prevent galvanic corrosion.

Q: What is the thickness of the M8 washer?

A: The standard thickness for our M8 split spring lock washer is approximately 2.5mm, adhering to DIN 127 specifications.

Q: Can these withstand high temperatures?

A: These washers are designed for standard industrial applications. For extreme high-temperature environments exceeding 200°C, we recommend specialized alloy washers.

Q: Do you offer bulk discounts for orders over 1000 units?

A: Yes, we offer tiered pricing for bulk orders. Please contact our sales team directly or join our membership for exclusive coupon codes.

Q: Is the black coating prone to chipping?

A: The black oxide finish is durable, but like any coating, it can chip if subjected to severe impact or improper installation tools. Proper torque application minimizes this risk.

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