Internal/External Serrated Lock Washer&Metric External-Internal Tooth Lock Washers Internal-/External-Tooth Lock Washers

Name: Meric External-internal Tooth Lock Washers (SAE J403, J405, ASTM B591).
Serrated washers are used on small parts to act as springs, and their size is about the same as the size of the fastening screws and self-tapping thread screws used with 3D sheet metal stampings. Serrated washers are mainly used to prevent the bolt from loosening.The combination of internal and external teeth boosts gripping power to maintain a tight hold and provide more vibration resistance than other toothlock washers. Use with fasteners that have heads large enough to make contact with the external teeth, such as pan, button, and binding head screws.
Black-oxide steel washers are mildly corrosion-resistant in dry environments. Zinc-plated steel washers are corrosion-resistant in wet environments.
410 stainless steel washers have excellent wear resistance.     

Internal and external tooth lock washers are a kind of washers commonly used in the connection of mechanical parts, and their main function is to realize the tight connection between parts through locking. Internal and external tooth lock washers are usually made of high-strength materials, such as stainless steel, aluminum alloys, or copper alloys, with good mechanical properties and corrosion resistance. The principle of internal and external toothlock washers is to utilize their special geometry to achieve locking. The outer edge of the external tooth lock washer is usually made in the shape of a gear, When embedded in the gap between the components, the gear shape of the outer edge will automatically wrap around the surface of the components, thus exerting a certain amount of compressive stress, the components will be tightly connected together. The special geometry of this washer gives it excellent locking capability. Compared to conventional washers, internal and external toothlock washers are able to lock components more effectively, thus preventing relative movement and vibration between components. In addition, thanks to their high-strength materials and excellent mechanical properties, internal and external toothlock washers maintain their locking properties over a long period of time, resulting in long-term reliability. Internal and external toothlock washers are very practical mechanical joints, widely used in a variety of mechanical, automotive, aerospace, and other fields. Its excellent locking ability and long-term reliability make it one of the most important materials in the field of mechanical connections.    

Size Can also be According to the Customer's requirement please check the detailed specification sheet details PDF， CAD, 5-6Page See more product details.    

Packing: The inner packaging consists of polyfoam, while the outer layer is a carton. The carton sizes are 29*19*19.5 cm and 23.5*17.5*8 cm, respectively. The pallet dimensions are 215*100*90 cm, or they can be customized according to your requirements.