Black-Plated Tooth Lock Washer

• Customization: Available
• Type: Lock Washer
• Material: Carbon Steel
• Model NO.: GB/T 862.1-1987
• Combination Washer Structure: B Type
• Combination Washer Packaging: All Inclusive
• Spring Washer Type: Standard
• Transport Package: Bag
• Specification: M2-M48
• Trademark: LING KE
• Origin: Yong Nian
• HS Code: 731822
• Production Capacity: 200000/Year
• Package Size: 50.00cm * 30.00cm * 30.00cm
• Package Gross Weight: 50.000kg

Product Description

Black-plated toothed washers feature a circular base with radial serrations (either internal, external, or double-sided) on their bearing surfaces. 

Structure and Anti-Loosening Function

Black Plating Advantages

Typical Applications

Black-plated toothed washers feature a circular base with radial serrations (either internal, external, or double-sided) on their bearing surfaces. When tightened with bolts or nuts, these sharp teeth embed into the mating material (such as metal panels or plastic components), creating a mechanical interlock. This design effectively resists rotational loosening caused by vibration, thermal expansion, or dynamic loads, making them ideal for high-stability fastening in industrial equipment.

The black plating surface treatment (typically via black zinc plating or chemical blackening) provides dual benefits: corrosion resistance and aesthetic uniformity. The plating forms a protective layer that enhances durability in humid or mild corrosive environments (e.g., indoor machinery, automotive undercarriages), extending service life compared to unplated washers. Additionally, the sleek black finish reduces light reflection and offers a professional appearance, suitable for visible fastening applications.

Widely used in industries requiring reliable anti-loosening performance and corrosion protection, such as.
Automotive manufacturing: Securing engine components, chassis parts, and electrical fixtures.
Mechanical engineering: Fastening pumps, motors, and conveyor systems prone to vibration.
Electrical equipment: Fixing control panels, junction boxes, and metal enclosures.
Furniture and hardware: Ensuring stable connections in heavy-duty furniture or tool 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.