Zinc-Plated Spring Washer

• Customization: Available
• Type: Spring Washer
• Material: Carbon Steel
• Model NO.: GB/T 93-1987
• Combination Washer Structure: A Type
• Combination Washer Packaging: All Inclusive
• Spring Washer Type: Standard
• Transport Package: Bag
• Specification: M3-M36
• Trademark: LING KE
• Origin: Yong Nian
• HS Code: 731821
• Production Capacity: 200000/Year
• Package Size: 60.00cm * 30.00cm * 30.00cm
• Package Gross Weight: 50.000kg

Product Description

Zinc-plated spring washers are primarily made from high-carbon spring steel (typically 65Mn), which undergoes heat treatment to achieve optimal elasticity and toughness, ensuring reliable anti-loosening performance under clamping force.

Material and Surface Treatment

Core Function: Anti-Loosening Mechanism

Application 

Zinc-plated spring washers are primarily made from high-carbon spring steel (typically 65Mn), which undergoes heat treatment to achieve optimal elasticity and toughness, ensuring reliable anti-loosening performance under clamping force. The key feature lies in their electro-zinc plating surface treatment—a layer of zinc is deposited onto the steel surface via electrolysis, followed by passivation (often forming blue-white or colored chromate films). This dual protection significantly enhances corrosion resistance, preventing rust and degradation in humid, outdoor, or mildly corrosive environments such as automotive underbodies, construction machinery, or industrial equipment.

Designed with a helical split structure, zinc-plated spring washers exert continuous elastic pressure between the nut/bolt head and the fastened surface when installed. As the bolt is tightened, the washer compresses and stores elastic energy, creating friction that resists vibrational or thermal expansion-induced loosening of the fastener. This makes them indispensable in dynamic applications prone to vibration, such as engine components, power tools, or mechanical transmissions, where maintaining clamping force is critical for operational safety.

Automotive and Transportation: Used in chassis, suspension, and engine bay fasteners to prevent loosening from road vibrations and temperature cycles, with zinc plating resisting salt spray and road grime corrosion.
Industrial Machinery: Secures components in pumps, motors, and conveyor systems, where their elasticity compensates for minor surface irregularities and maintains tight connections.
Construction and Infrastructure: Applied in metal structures, electrical enclosures, and pipeline fittings, offering cost-effective corrosion protection compared to stainless steel alternatives.
Advantages: Beyond anti-loosening and corrosion resistance, they are lightweight, easy to install, and cost-efficient for mass production, making them a versatile choice for both general and demanding mechanical assemblies.

Packing & Delivery

Bag Packaging

Carton Packaging

Fasteners can be packaged in durable plastic bags, which are available in various sizes to accommodate different quantities (e.g., small batches of screws, nuts, or bolts). The bags are typically sealed by heat or with a zipper to prevent moisture, dust, and loss of contents. This method is lightweight, cost-effective, and suitable for retail sales, small shipments, or situations where easy access to the fasteners is needed. Additionally, clear plastic bags allow for quick visual identification of the products inside.

For larger quantities or bulk transportation, cartons are commonly used. These are sturdy cardboard boxes, often reinforced with corrugated layers to provide protection against impact during handling and shipping. Fasteners in cartons are usually pre-packed in bags or separated by dividers to avoid friction and damage. Cartons can be labeled with product details (e.g., type, size, quantity) and are stackable, optimizing storage and logistics efficiency. This method is ideal for industrial orders, wholesale distribution, or long-distance transportation where durability is a priority.

Company Profile

Company Name

 Hebei LING KE Metal Products Manufacturing Co.has firmly established itself as a leading force in the fastener industry, with a rich history and a commitment to excellence that spans over 10 years. Since its inception, the company has been dedicated to providing high-quality fasteners and comprehensive fastening solutions to a diverse range of industries worldwide.In recent decades, Hebei LING KE Metal Products Manufacturing Co. has expanded its footprint globally, establishing strategic partnerships and distribution centers in key regions around the world. This has allowed the company to better serve its international customer base and meet the growing demand for its products in emerging markets.