Product Description

Hebei Dongshao Fastener Manufacturing Co., Ltd. is a premier Chinese manufacturer and supplier of high-performance Plain Washers for Steel Construction. Engineered for heavy-duty applications, our washers provide superior load distribution and vibration resistance, ensuring the long-term safety and stability of your steel structures.

With decades of expertise in fastener production, we deliver components that not only meet but exceed international standards. By choosing Dongshao, you are investing in durability, precision, and cost-effective reliability that minimizes structural deformation risks and maximizes project longevity.

Key Features & Benefits

Superior Load Bearing Capacity: Effectively distributes compressive stress to protect connected parts and prevent structural deformation.
Enhanced Durability: Manufactured with high-grade materials to withstand harsh environments, ensuring long-lasting performance and reduced maintenance costs.
Vibration & Shock Resistance: Optimized design provides excellent shock-proof performance, fundamentally safeguarding the safety of steel structures.
Broad Compatibility: Seamlessly integrates with various threaded fasteners (bolts and nuts) used in steel construction, including high-strength hex bolts and anchor bolt systems.
Versatile Applications: Suitable for a variety of uses, including friction reduction, leak prevention, insulation, and load distribution across multiple structural scenarios.

Applications

Our plain washers are essential components in modern construction and infrastructure projects, commonly utilized in:

Steel Structure Buildings: Securing beams, columns, and trusses.
Heavy Machinery Assembly: Providing stable fastening for industrial equipment.
Bridge & Highway Construction: Ensuring long-term joint stability.
Photovoltaic & Wind Power Projects: Delivering reliable fastening in renewable energy installations.
General Fastening Systems: Used alongside spring washers for added locking functions or ribbed washers for electrical contact needs.

Technical Specifications

Below are the standard dimensions for our Plain Washers (mm). Custom specifications are available upon request for large-scale orders.

Nominal Size (mm)	Φ10	Φ12	Φ16	Φ20	Φ22	Φ24	Φ27	Φ30	Φ33	Φ36
d min (Hole)	11	14	18	22	24	26	30	33	36	39
dc (O.D.)	21	24	30	37	39	44	50	56	60	66
h (Thickness)	8	8	8	8	8	8	8	8	8	8

Note: We strictly adhere to ANSI/ASME F436, GB, and other international standards to ensure quality compliance.

Why Choose Dongshao?

Proven Expertise: Founded in the 1980s, we have over 40 years of experience in the fastener industry, evolving into a high-tech enterprise with a 10,000+ sqm facility and a team of over 20 technical engineers.
Stringent Quality Control: We operate with a "conscience-driven" quality assurance policy, ensuring every product meets rigorous safety and performance benchmarks.
Global Reputation: Our products are exported to Southeast Asia, Europe, North America, and Africa, trusted by clients worldwide for their reliability and competitive pricing.
Comprehensive Service: We offer professional technical support, customized solutions, and responsive after-sales service to ensure your procurement process is seamless.