The black oxide internal teeth lock washers, compliant with GB 861.1 standards, are specially designed to provide secure fastening in various applications. These washers feature internal teeth that grip the surface of the bolt and the material being fastened, preventing loosening due to vibration and dynamic loads.
Material: Made from high-quality steel with a black oxide finish for enhanced corrosion resistance and durability.
Design: Internal teeth design provides superior grip and locking capability, ensuring a secure connection.
Standard Compliance: Manufactured according to GB 861.1 standards, guaranteeing consistent quality and performance.
Versatile Sizes: Available in various sizes to accommodate different bolt dimensions and application requirements.

The 304 Stainless Steel Serrated Inner and Outer Teeth Anti-Slip Washer is designed to provide enhanced grip and stability in fastening applications. Made from high-quality stainless steel, these washers are ideal for preventing slippage and ensuring secure connections in various environments.
Material: Constructed from premium 304 stainless steel, offering excellent corrosion resistance and durability, making them suitable for both indoor and outdoor use.
Serrated Design: The serrated inner and outer teeth provide superior grip, preventing the washer from slipping during installation and ensuring a secure fit.
Anti-Slip Functionality: Designed to enhance the friction between the washer and the surface, these washers effectively reduce the risk of loosening.
Versatile Applications: Suitable for a wide range of applications, including automotive, construction, and machinery, where secure fastening is critical.