Language

+86-563-4186973

Submit feedback

Load-distributing Versatile-material Flat Washers-DIN988 Suppliers

Home / Products / Flat Washers / Load-distributing Versatile-material Flat Washers-DIN988

Product Categories

Clear all

Specification/Nominal Size

Contact Us

Load-distributing Versatile-material Flat Washers-DIN988

Flat washers are usually thin pieces of various shapes used to reduce friction, prevent leakage, isolate, prevent loosening, or disperse pressure. They are generally flat metal rings that are used to protect the surface of the connected part from abrasion by the nut and to distribute the pressure of the nut on the connected part. Such parts are found in many materials and constructions for the fulfillment of all kinds of similar effects and are usually classified into two states, hardened and non-hardened, according to the circumstances of their use. On the other hand, it is more widely used in the field of automotive parts as an adjusting spacer through the grinding machine.

Material: Conventional carbon steel and stainless steel, etc. (65Mn, C67S, DC01, SPCC, 2Cr13, 301, 304, etc.).

Surface treatment: all kinds of conventional standard treatment, such as phosphating, Dacromet, Jumet, zinc plating, zinc nickel plating, electrophoresis, and so on.

Thickness: 0.1 (0/-0.03); 0.15 (0/-0.03); 0.2 (0/-0.04); 0.3 ~ 2 (0/-0.05)

Load-distributing Versatile-material Flat Washers-DIN988

d1 (Spec) (D)
3
3*6
6
4
4*8
8
5
5*10
10
6
6*12
12
7
7*13
13
8
8*14
14
9
9*15
15
10
10*16
16
11
11*17
17
12
12*18
18
13
13*19
19
14
14*20
20
15
15*21
21
15
15*22
22
16
16*22
22
17
17*24
24
18
18*25
25
19
19*26
26
20
20*28
28
22
22*30
30
22
22*32
32
25
25*36
35
25
25*36
36
26
26*37
37
28
28*40
40
30
30*42
42
32
32*45
45
35
35*45
45
36
36*45
45
37
37*47
47
40
45*50
50
42
42*52
52
45
45*55
55
45
45*56
56
48
48*60
60
50
50*62
62
50
50*63
63
52
52*65
65
55
55*68
68
56
56*70
70
56
56*72
72
60
60*75
75
63
63*80
80
65
65*85
85
70
70*90
90
75
75x95
95
80
80x100
100
85
85x105
105
90
90x110
110
95
95x115
115
About Us
Anhui Ningguo Dongbo Fastener Co., Ltd.
Dongbo was established in September 2005 with a registered capital of 47.72 million. It is located in the national Ningguo Economic and Technological Development Zone, covers an area of ​​91 acres, and currently has more than 420 employees. As a Custom Load-distributing Versatile-material Flat Washers-DIN988 Suppliers and Load-distributing Versatile-material Flat Washers-DIN988 Company, the company has been focusing on the production of retaining rings for 46 years, producing washers (round, butterfly, spherical), retaining rings, elastic cylindrical pins and other series of products and non-standard customized stamping parts. It is a high-tech enterprise with large scale, multiple varieties, complete specifications, and integrated manufacturing, R&D and sales in the industry.
Certificate Of Honor
  • CNAS
  • IATF16949
  • Certificates
  • ISO14001
  • Certificates
  • Certificates
  • Certificates
  • Certificates
  • Certificates
  • Certificates
  • Certificates
  • Certificates

News

  • Oct 31,2025

    Beveled Retaining Rings Functional Guide

    Preload Mechanics and Axial Retention Advantages A beveled retaining ring delivers axial retention by applying a controlled radial spring force combined with axial thrust, formed by the angled cross-section. This structu...

    View More
  • Oct 23,2025

    Common Applications of Snap Rings in Machinery and Equipment

    1. Automotive Systems Snap rings play a critical role in automotive assemblies where reliable part retention and compact design are essential. They prevent components from moving axially while allowing for efficient asse...

    View More
  • Oct 16,2025

    What Are 1.4122 Circlips, and What Distinguishes Them from Circlips Made of Other Stainless Steel Grades?

    1.4122 circlips are precision-engineered retaining rings manufactured from 1.4122 stainless steel, a martensitic chromium steel known for its high hardness, strength, and moderate corrosion resistance. These circlips are...

    View More
  • Oct 11,2025

    What Are the Differences Between Standard, Heavy-Duty, and Stainless Steel External Circlips?

    External circlips are essential components in mechanical assemblies, serving as retaining rings that securely hold shafts, bearings, gears, and other cylindrical parts in place. They are widely used in automotive, indust...

    View More
Load-distributing Versatile-material Flat Washers-DIN988 Industry knowledge

Hardened vs. Non-Hardened DIN988 Washers: Understanding Their Unique Uses

Hardened DIN988 washers undergo a heat treatment process that increases their hardness and strength. This makes them highly resistant to deformation under high loads and stress. Typically made from materials such as 65Mn, C67S, or stainless steel grades like 301 , hardened washers are ideal for applications where maintaining structural integrity is paramount.

Key Characteristics:
High tensile strength : Resists bending or breaking under heavy loads.
Durability : Withstands wear and tear in demanding environments.
Precision : Maintains shape and function even under extreme conditions.
Common Applications:
Heavy machinery : Used in construction equipment, industrial presses, and hydraulic systems where high load-bearing capacity is required.
Automotive industry : Employed in suspension systems, engine mounts, and other high-stress areas.
Structural engineering : Ensures stability in bridges, buildings, and other infrastructure projects.
What Are Non-Hardened DIN988 Washers?
Non-hardened DIN988 washers, on the other hand, are not subjected to heat treatment and retain a softer, more malleable structure. Made from materials such as conventional carbon steel (DC01, SPCC) or stainless steel grades like 304 , these washers are better suited for applications where flexibility, corrosion resistance, or cost-effectiveness is prioritized over extreme hardness.

Key Characteristics:
Flexibility : Can conform slightly to uneven surfaces, providing better sealing or isolation.
Corrosion resistance : Often used in environments exposed to moisture or chemicals when made from stainless steel.
Cost-effective : Generally less expensive than hardened washers, making them suitable for low-load applications.
Common Applications:
General-purpose fastening : Ideal for light-duty tasks in household appliances, furniture assembly, and electronics.
Corrosive environments : Stainless steel non-hardened washers are widely used in marine, food processing, and medical equipment.
Adjusting spacers : Frequently employed in automotive parts as precision spacers due to their ability to be ground to exact thicknesses.
Choosing Between Hardened and Non-Hardened Washers
Selecting the appropriate type of DIN988 Flat Washers depends on several factors, including the application's requirements, environmental conditions, and budget constraints. Here’s a breakdown to help you decide:
Load-Bearing Capacity : If your application involves heavy loads or high stress, opt for hardened washers to ensure they won’t deform or fail.
Environmental Factors : For corrosive or wet environments, choose non-hardened stainless steel washers for their superior resistance to rust and chemical damage.
Surface Protection : Both types can protect surfaces, but if the surface is delicate or prone to scratching, non-hardened washers may offer gentler contact.
Cost Considerations : For non-critical applications where maximum strength isn’t necessary, non-hardened washers provide an economical solution without compromising functionality.

Surface Treatments for Enhanced Performance
Regardless of whether you choose hardened or non-hardened DIN988 washers, surface treatments can significantly enhance their performance and longevity. Common options include:
Phosphating : Provides mild corrosion resistance and improves lubricity.
Zinc plating : Offers excellent protection against rust in outdoor or humid environments.
Dacromet and Jumet coatings : Deliver superior corrosion resistance and are often used in automotive and industrial applications.
Electrophoresis : Creates a durable, uniform coating that resists chipping and peeling.
At Anhui Ningguo Dongbo Fastener Co., Ltd. , we specialize in offering a wide range of DIN988 washers with various materials and surface treatments to meet diverse customer needs. Our expertise ensures that every washer we produce adheres to the highest quality standards, delivering reliable performance across industries.

With decades of experience in manufacturing retaining rings, washers, and other fastening solutions, Anhui Ningguo Dongbo Fastener Co., Ltd. has earned a reputation for excellence. Located in the Ningguo Economic and Technological Development Zone , our state-of-the-art facilities and skilled team enable us to deliver both standard and customized DIN988 washers tailored to your specifications.

Whether you need hardened washers for heavy-duty applications or non-hardened washers for general use, we have the expertise and resources to meet your requirements. Our commitment to innovation, quality, and customer satisfaction ensures that you receive products that exceed expectations.