Steel washers are thin, disc-shaped components installed between fasteners and mating materials to distribute loads, provide spacing, and act as preload indicators. They are used where hole diameters exceed fastener head dimensions, ensuring secure assembly while protecting surfaces. These components distribute weight uniformly and reduce friction in machinery, equipment, and construction applications.
Steel washers are manufactured from stainless steel grades including 18-8, 304, and 316, which contain chromium and nickel for enhanced properties. Lower carbon variants like 304L and 316L feature maximum carbon content of 0.030 percent. Other grades such as 410, 430, and 440 stainless steel are available, with options for passivation and Defense Federal Acquisition Regulation Supplement (DFAR) compliance. Materials meet ASTM A240/A240M and other international standards.
Key advantages include corrosion resistance against oxidizing acids and rust, durability under high temperatures and mechanical stress, and even load distribution that prevents surface damage. Steel washers maintain stable fastening in high-vibration environments without loosening over time.
Available sizes range from 0.080 inches to over 5 inches in outer diameter, with thicknesses from 0.005 to 0.375 inches in both metric and imperial measurements. Washers conform to DIN, ISO, and ASME standards, ensuring compatibility with conventional hardware and industrial requirements.
Bottom Centering Washer
Cast or ductile iron washer seated at the bottom of an oversized crossarm pin hole, centering the steel pin shank and providing a solid bearing surface for tightening the nut.
Lip Washer
Square steel washer with an upturned lip and tapped center hole, used with pole line pins or bolts to prevent rotation, improve tool engagement, and create a secure, slip-resistant clamping surface.
Square Curved Washer
Hot-dip galvanized square washer with a curved bearing face that matches the round pole surface, distributing bolt load evenly and preventing embedding when clamping crossarms or brackets to utility poles.
Square Flat Washer
Flat square steel washer providing greater bearing area than round washers, used in pole line construction to spread bolt loads, reduce crushing, and improve joint strength on crossarms and structural members.
Trusted Steel Washer Wholesaler
RaxPower is China’s leading manufacturer of versatile, reliable, and cost-effective steel washers. With over 21 years of experience since our establishment in 2003, we specialize in producing high-quality washers using advanced processes like hot forging, which enhances strength and ensures precise sizing for superior performance. Our steel washers are essential components that distribute load evenly, prevent surface damage, and provide secure fastening in high-vibration environments across various applications.
Operating from a 17,000-square-meter production facility in Hebei Province, we leverage strict quality control measures, including raw material selection and multi-stage testing, to guarantee that every washer meets rigorous standards. Our automation and extensive inventory enable fast turnaround times and custom solutions, backed by a team of over 170 dedicated professionals.
Key benefits of our steel washers include:
- Secure fastening that prevents loosening over time
- Increased longevity by reducing stress on fasteners
- Improved vibration resistance for durable operation
- Cost-effectiveness for diverse industrial needs
Serving industries such as power line construction, automotive, and machinery, we are committed to providing a fast and easy purchasing experience with unparalleled attention to detail. For a free sample and a prompt quote, ASK FOR QUOTE NOW! We respond within 12 hours.
| Parameter | Value / Range |
|---|---|
| Material | Steel |
| Material Grade | 18-8, 304, 316, 304L, 316L, 410, 430, 440 |
| Inner Diameter (I.D.) | 0.020 inches to 5 inches |
| Outer Diameter (O.D.) | 0.080 inches to 5 inches |
| Thickness | 0.005 inches to 0.375 inches |
| Standards | DIN, ISO, ASME |
| Finish | Zinc Plated, Hot-Dip Galvanized |
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Frequently Asked Questions (FAQS)
What are the primary applications of steel washers?
Steel washers are used for load distribution, as spacers, preload indicators, vibration reducers, wear pads, and in applications where the hole diameter is larger than the fastener head.
What materials are steel washers made from?
Steel washers are available in stainless steel (304, 316, 410, 430, and 440 series), zinc-plated steel, and other grades, offering corrosion resistance and durability.
What sizes and dimensions are available for steel washers?
Steel washers come in sizes including inner diameters from 0.140 to 0.265, outer diameters from 0.437 to 0.687, and thicknesses from 0.035 to 0.065. Metric sizes like M3, M4, M5, M6, M8, M10, and M12 are also available.
What standards do your steel washers comply with?
Our steel washers comply with ASTM A240/A240M, DIN, ISO, and other standards. They are manufactured under ISO-9001 quality assurance, with Certificates of Compliance provided for every order and SGS-certified testing for critical infrastructure applications.
Do you offer custom steel washers for specific project requirements?
Yes, we provide complete custom manufacturing for non-standard sizes, materials, and specifications. With access to over 32,000 stock tools and rapid custom die creation, we can meet unique demands for telecommunications, OEM clients, and other specialized applications.
How do you maintain competitive pricing while ensuring quality?
We achieve cost-effectiveness through efficient manufacturing processes and economies of scale. Our competitive pricing is backed by high-quality materials, rigorous testing, and consistent performance standards, ensuring long-term value for distributors, manufacturers, and partners.
Can you handle large-volume orders with on-time delivery?
Yes, we maintain extensive inventory and have robust manufacturing capabilities, including over 17,000 square meters of production space and multiple power presses. This enables us to efficiently manage bulk orders for renewable energy installations, EPC contracts, and other major infrastructure projects without delays.
How can I place an order or request a quote for steel washers?
You can place an order, request a quote online, or contact RaxPower directly for assistance. We provide fast turnaround times and support for both standard and custom orders.