GB862.2 Serrated Lock Washers External Teeth Zinc Steel M2-M30 Stainless DIN6798

• Customization: Available
• Type: Lock Washer
• Material: Spring Steel/Stainles Steel
• Model NO.: M2-M30
• Color: Yellow/Blue/White/Black/Silver
• Measurement: Metric
• Standard: GB861.2/GB862.2 DIN6798-J/DIN6798-a
• Surface Treatment: Zinc Galvanized/Phosphating/Natural/Dacromet
• Size: 2mm-30mm
• Style Type: External Tooth
• Transport Package: Bulk/Bag/Box/Pallet
• Specification: 2mm-30mm/Other Customized
• Trademark: LingKe
• Origin: China
• Production Capacity: 3000000/Week
• Package Size: 20.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 3.000kg

Product Description

Product Description

Serrated lock washer With Internal/External Tooth

Serrated lock washers are precision-engineered fastening components designed to prevent spontaneous loosening under vibration or dynamic loads. Internal tooth variants (DIN 6798A/GB 861.1) feature inward-facing teeth, while external tooth types (DIN 6797/JIS B1256) have outward-facing serrations.

Materials:

Carbon steel (65Mn, HRC 42-50) - Default for industrial applications
Stainless steel (A2/A4 grade) - Corrosion-resistant solutions
Copper alloys (C11000/C5191) - Electrical/thermal conductivity required
Working Principle
The sharp-angled teeth (75°-85° inclination) mechanically bite into mating surfaces, creating frictional resistance that counters rotational loosening. Internal teeth optimize grip on shaft surfaces, while external teeth enhance nut/bolt head retention.

Application Guidelines
Recommended for: Automotive transmissions, rotating machinery, and structural joints subject to vibration (ISO 16130 compliant)
Avoid: Over-tightening (>80% proof load may flatten teeth) or reuse (plastic deformation reduces effectiveness)

Specification

Product Name	Serrated lock washer
Material	Carbon Steel /Stainless steel 304 316
Grade	4.8/8.8/10.9/12.9/A2-70/A4-80
Type	Internal/External Tooth
Surface Treatment	Zinc Galvanized/Phosphating/Natural/Dacromet
Color	Black/Silver/Yellow/White/Blue
Measurement	Metric
Size	2mm-30mm/Other Customized
Service	Support OEM/OBM/ODM Customized Service

Packing & Delivery

Bulk/Fiber Bag/Neutral packing

Carton/Box

Wood Pallet/Box

Bagged packaging is ideal for smaller quantities of fasteners. The fasteners are placed in durable plastic bags, which are then sealed to protect the contents from moisture and dust. Each bag is clearly labeled with product details and quantities. This packaging is easy to handle and transport for smaller orders, making it convenient for workshops and retail settings.

Boxed packaging offers a more structured solution for medium to large quantities of fasteners. The fasteners are packed in sturdy cardboard boxes, which provide additional protection against physical damage during transit. The boxes are designed to stack neatly, optimizing storage space. Each box is labeled with essential information, ensuring easy identification and inventory 

Palletized packaging is used for bulk shipments of fasteners. Multiple boxes or bags are securely strapped onto a pallet, creating a stable and easily transportable unit. This method is highly efficient for large-scale distribution and warehousing. Palletized packaging ensures that large quantities of fasteners can be moved quickly and safely using forklifts, reducing handling time and labor costs.

Company Profile

Certifications

FAQ

Q: What is the estimated lead time for orders?
A: Our estimated lead time is 15-30 days for 1-2 containers and extends to 30-45 days for 3-20 containers, ensuring timely delivery.
Q: Are you a professional manufacturer?
A: Absolutely! We have proudly been at the forefront of manufacturing since 1995.
Q: Is it possible to request a customized size?
A: Indeed! We offer customization services to tailor products precisely to your design specifications.
Q: What export documentation do you provide?
A: Our comprehensive export package includes a Commercial Invoice, Packing List, Bill of Lading, and COC, among other essential documents.
Q: How can I place an order?
A: Simply contact us via email or phone to receive a quote and finalize your order with a Purchase Order (PO).