








The flat washer is an essential, thin metal component expertly designed to minimize friction, prevent leaks, provide isolation, avoid loosening, and evenly distribute pressure. Let's delve into the detailed description of flat washers:
1, Main Features and Applications
• Enhanced Contact Area: Flat washers are ingeniously crafted to expand the contact surface between bolts or nuts and the connected components. This effectively disperses pressure, safeguarding the surface of the connected parts from potential crushing.
Anti-Slip and Anti-Bite: During fastening installations, flat washers offer a remarkable solution to prevent bolts or nuts from loosening due to vibrations or other factors. They also feature an anti-bite function, facilitating effortless disassembly.
• Versatile Material Selection: Flat washers are typically manufactured from a rich variety of metal materials such as carbon steel, stainless steel, and copper. This variety ensures they meet the diverse demands of various environments and applications.
2, Specifications and Standards
Precise Standard Dimensions: The standard dimensions of flat washers encompass the inner diameter, outer diameter, and thickness, tailored to their specific model and application scenario. For example, the M1.6 model flat washer measures 1.6mm in inner diameter, 4mm in outer diameter, and has a thickness of 0.3mm; meanwhile, the M10 model features a 10mm inner diameter, 20mm outer diameter, and a thickness of 2mm.
Strict National Standards: The manufacturing and application of flat washers adhere to a comprehensive set of national standards, such as GB/T 95-2002 "Flat Gaskets Class C", and GB/T 97.1-2002 "Flat Gaskets Class A". These standards meticulously define the dimensions, tolerances, materials, and technical criteria for flat washers.
3, Application Scenarios
Mechanical Equipment: In mechanical equipment, flat washers are indispensable at the junction of bolts and nuts, ensuring the stability and reliability of the connection.
Automotive Industry: Flat washers are extensively employed within automotive manufacturing to connect critical components, such as engines and transmissions, significantly enhancing the durability and safety of these connectors.
Construction Industry: Within the construction sector, flat washers are frequently utilized in scenarios like steel structure connections and pipeline connections, effectively preventing connector loosening due to vibrations or external forces.
4, Performance and Limitations
Exceptional Performance: Flat washers exhibit outstanding compressive strength and wear resistance, maintaining stable connection effects in high-pressure environments. Their anti-slip and anti-bite capabilities further solidify their role in ensuring safer and more reliable connections.
• Limitations: In certain specialized environments, such as those with high temperatures, high humidity, or corrosive conditions, the performance of flat washers may be compromised. Additionally, if the tightening axial force at the connection point is excessive, the flat washer may become deformed into a disc shape, impairing its pressure dispersion ability. To address this, materials and hardness must be adjusted appropriately.
In summary, flat washers are pivotal auxiliary components for fasteners, serving crucial roles across fields such as mechanical equipment, the automotive industry, and the construction industry. By understanding their key characteristics, specifications, application scenarios, and performance constraints, users can make informed decisions for optimal selection and usage, ensuring the stability and reliability of connections.