ALL CATEGORIES

Seller Center
- Product Management
  
  Post Product
  
  Manage Products
  
  Featured Products
- Blog Management
  
  Post Blog Article
  
  Manage Blog Articles
  
  Manage Blog Categories
- Inquiry Management
  
  My Inquiries
  
  Buying Requests
- Analytics Center
  
  Performance Dashboard
  
  Product Analytics
  
  Visitor Analytics
Connect Your Store to WeChat

Follow Our Official Service Account
Manage Products & Inquiries Anywhere
Seller Services

Seller Services

Goldsupplier.com: 20 years of Global Trade Expertise, Empowering Your Business to Go Global!

Join GoldSupplier.com

Free & Instant Registration

Showcase Company & Products

Access Global Buying Requests

Register Now

Activate Verified Supplier Membership

Priority Verified Visibility

Claim Exclusive Buying Requests

Automated Multi-language Store

Verified Now

Launch Your EasyOcean Website

Full-Service Website Management

Google Page 1 Guarantee

Enhanced Brand Credibility

Launch Now
Buyer Services
Post Buying Request

Browse Product Categories

Featured Suppliers
Contact Platform Support

Help Center

Home > Tools & Hardware > Hardware Accessories > Spring > Carbon Steel Double-layer Spring Washer, Zinc Plated, M6-M24, Hardness HRC 40-50, Standard Compliant

Carbon Steel Double-layer Spring Washer, Zinc Plated, M6-M24, Hardness HRC 40-50, Standard Compliant

Carbon Steel Double-layer Spring Washer, Zinc Plated, M6-M24, Hardness HRC 40-50, Standard Compliant thumbnail-3

Carbon Steel Double-layer Spring Washer, Zinc Plated, M6-M24, Hardness HRC 40-50, Standard Compliant thumbnail-4

Carbon Steel Double-layer Spring Washer, Zinc Plated, M6-M24, Hardness HRC 40-50, Standard Compliant thumbnail-5

Carbon Steel Double-layer Spring Washer, Zinc Plated, M6-M24, Hardness HRC 40-50, Standard Compliant photo-1

Carbon Steel Double-layer Spring Washer, Zinc Plated, M6-M24, Hardness HRC 40-50, Standard Compliant photo-2

Carbon Steel Double-layer Spring Washer, Zinc Plated, M6-M24, Hardness HRC 40-50, Standard Compliant photo-3

Carbon Steel Double-layer Spring Washer, Zinc Plated, M6-M24, Hardness HRC 40-50, Standard Compliant photo-4

Carbon Steel Double-layer Spring Washer, Zinc Plated, M6-M24, Hardness HRC 40-50, Standard Compliant photo-5

Product Spotlights

Double-layer design provides superior locking force and vibration resistance compared to single spring washers. Carbon steel with zinc plating ensures durability and corrosion protection. Hardness HRC 40-50 optimized for elastic recovery. Available in M6 to M24 sizes, compliant with industrial standards. Trusted manufacturer since 1998 with global export experience.

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

Key Specifications

Get Latest Price

Material:

Other, Carbon Steel

Surface Treatment:

Zinc Plated

Size Range:

M6 to M24

Contact Supplier Request Quote Chat Now

Anping County Boli Hardware Wiremesh Products Factory

2Yrs

Payment & Shipping

Payment Methods:

Port of Shipment:

tianjin shanghai qingdao

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
Contact Us

Material Other, Carbon Steel

Surface Treatment Zinc Plated

Size Range M6 to M24

Hardness HRC 40-50

Type Double-layer Spring Washer

Standard Standard Compliant

Color Silver (Zinc Plated)

Application Industrial Fastening, Anti-loosening

Reliable Anti-Loosening Solution from a Trusted Manufacturer

Anping County Boli Hardware Wiremesh Products Factory, a professional manufacturer established in 1998 with annual export value of US$5-10 million, brings you high-quality carbon steel double-layer spring washers. These washers are designed to provide superior locking force and prevent loosening of bolted connections under vibration and dynamic loads. With zinc plating for corrosion resistance, hardness HRC 40-50, and size range M6 to M24, they meet standard compliance requirements for industrial applications. Our experience serving global markets ensures reliable performance for your projects.

Product Features & Technical Specifications

Double-layer design: Two interlocking spring layers increase elastic recovery and provide higher clamping force compared to single spring washers.
Material: High-quality carbon steel (C45 or equivalent) ensures consistent hardness and durability.
Surface treatment: Zinc plated (electro-galvanized) offers excellent corrosion protection, suitable for indoor and moderate outdoor environments.
Hardness range: HRC 40-50, optimized for proper spring action without brittleness.
Size availability: From M6 (6mm) to M24 (24mm) nominal thread diameter, covering common industrial bolt sizes.
Standard compliance: Manufactured to meet or exceed industry standards (e.g., DIN 127, GB/T 93, or equivalent).
Application: Ideal for automotive, machinery, construction, electrical equipment, and any assembly where vibration resistance is critical.

Size	Inner Diameter (mm)	Outer Diameter (mm)	Thickness (mm)
M6	6.1	12.0	2.6
M8	8.2	16.0	3.2
M10	10.2	20.0	4.0
M12	12.2	24.0	4.8
M16	16.2	32.0	6.4
M20	20.5	40.0	8.0
M24	24.5	48.0	9.6

Why Choose Our Double-Layer Spring Washers?

Enhanced locking performance: The double-layer design provides up to 30% more spring force than standard single washers, reducing the risk of fasteners loosening.
Consistent hardness: Heat-treated to HRC 40-50, offering excellent elasticity and fatigue resistance for long service life.
Corrosion protection: Zinc plating thickness of 5-8μm (customizable) ensures good resistance to moisture and mild chemicals.
Precise dimensions: Manufactured with tight tolerances to fit standard bolts and nuts without binding.
Cost-effective solution: Compared to adhesive locking systems or nylon insert nuts, spring washers offer a simple and economical anti-loosening method.
Customizable: Available in special sizes, different plating (e.g., black oxide, hot-dip galvanized), or packaging upon request.

Trust & Reliability Backed by Decades of Experience

Anping County Boli Hardware Wiremesh Products Factory has been dedicated to fastener manufacturing since 1998. With annual export value exceeding US$5 million and 20+ years of experience, we have shipped millions of washers to clients across North America, Europe, Asia, and beyond. Our advanced production lines and strict quality control ensure that every batch of double-layer spring washers meets the required hardness, dimensions, and plating standards. We are committed to providing competitive pricing without compromising quality. For inquiries or custom orders, please contact us – we are ready to support your projects with reliable products and professional service.

Frequently Asked Questions

Q: What is the difference between a double-layer spring washer and a single spring washer?
A: A double-layer spring washer consists of two nested spring washers that work together to generate higher elastic force and better locking effect. It provides greater resistance to vibration loosening compared to a single washer, especially in high-load or dynamic applications.
Q: Are these washers suitable for outdoor use?
A: Yes, the zinc plating offers moderate corrosion resistance, making them suitable for many outdoor environments. For extreme conditions (e.g., coastal or chemical exposure), we recommend upgrading to hot-dip galvanized or stainless steel versions – please inquire about custom options.
Q: What standard do these washers comply with?
A: Our products are manufactured in accordance with popular international standards such as DIN 127, GB/T 93, and other equivalent specifications. The “Standard Compliant” designation means they meet the dimensional and mechanical requirements of these standards.
Q: Can I use these washers with high-strength bolts?
A: Yes, the hardness HRC 40-50 is compatible with most common bolt grades (e.g., 8.8, 10.9). However, for very high-strength bolts (e.g., 12.9), we recommend verifying compatibility to avoid over-stressing the washer.
Q: What is the maximum temperature these washers can withstand?
A: Carbon steel spring washers with zinc plating can typically operate in temperatures up to 120°C (248°F) without significant loss of spring properties. For higher temperatures, consider using phosphate-coated or stainless steel washers.
Q: Do you provide samples before bulk order?
A: Yes, we offer free samples for small quantities. You only need to cover the shipping cost. Contact us with your requirements and we will arrange sample shipment promptly.
Q: How are these washers packaged?
A: Standard packaging includes poly bags, cartons, or pallets. Custom packaging (e.g., bulk packaging, shrink-wrapped, or retail-ready packaging) is available upon request.
Q: What is the lead time for bulk orders?
A: For standard sizes (M6-M24), typical lead time is 15-25 days after order confirmation, depending on quantity. For custom sizes or special finishes, please allow additional time.