








Flat washer is a thin metal component used to reduce friction, prevent leakage, isolate, prevent loosening or distribute pressure. The following is a detailed description of flat washers:
1, Main features and applications
• Increase contact area: Flat washers can increase the contact area between bolts or nuts and the connected parts, thereby dispersing pressure and protecting the surface of the connected parts from being crushed.
Anti slip and anti bite: In fastening installation, flat washers can prevent bolts or nuts from loosening due to vibration or other reasons, and also have anti bite function, making disassembly easier.
• Diverse materials: Flat washers are usually refined from various metal materials such as carbon steel, stainless steel, copper, etc. to meet the needs of different environments and applications.
2, Specifications and standards
Standard dimensions: The standard dimensions of flat washers include inner diameter, outer diameter, and thickness, depending on their model and application scenario. For example, the M1.6 model flat washer has an inner diameter of 1.6mm, an outer diameter of 4mm, and a thickness of 0.3mm; The M10 model flat washer has an inner diameter of 10mm, an outer diameter of 20mm, and a thickness of 2mm.
National standards: The production and application of flat gaskets follow a series of national standards, such as GB/T 95-2002 "Flat Gaskets Class C", GB/T 97.1-2002 "Flat Gaskets Class A", etc. These standards specify the dimensions, tolerances, materials, and technical requirements for flat washers.
3, Application scenarios
Mechanical equipment: Flat washers are commonly used at the connection between bolts and nuts in mechanical equipment to ensure stability and reliability of the connection.
Automotive industry: Flat washers are widely used in the connection of key components such as engines and transmissions in automotive manufacturing to improve the durability and safety of the connectors.
Construction industry: In the construction field, flat washers are commonly used in steel structure connections, pipeline connections, and other scenarios to prevent loosening of connectors due to vibration or external forces.
4, Performance and Limitations
Performance: Flat washers have excellent compressive and wear resistance, and can maintain stable connection effects in high-pressure environments. At the same time, its anti slip and anti bite functions also make the connectors safer and more reliable.
• Limitations: In certain special environments, such as high temperature, high humidity, or corrosive environments, the performance of flat washers may be affected. In addition, when the tightening axial force at the connection point is too large, the flat washer may be pressed into a disc shape, thereby affecting its ability to disperse pressure. At this point, it is necessary to use materials and increase hardness to solve the problem.
In summary, as a common auxiliary component of fasteners, flat washers play an important role in fields such as mechanical equipment, automotive industry, and construction industry. Understanding the main characteristics, specifications, application scenarios, and performance limitations of flat washers can help to better select and use them, ensuring the stability and reliability of the connection.