







Fish eye washer is a fastener accessory with a unique concave convex design. The following provides a detailed description of its structural characteristics, functional applications, material specifications, and advantageous value
1, Structure and Material Characteristics
Concave convex biomimetic design
Pressure dispersion principle: The gasket surface adopts a fisheye shaped convex structure, which disperses concentrated pressure to multiple convex points through point contact instead of surface contact, effectively reducing local stress and improving fastening stability.
Core material:
Stainless steel 304 (A2-70): Strong corrosion resistance, suitable for humid or outdoor environments, such as shipbuilding, chemical equipment, and other scenarios.
Galvanizing treatment: Some models are surface galvanized to enhance rust prevention ability and extend service life, suitable for high load fields such as mechanical manufacturing and construction engineering.
Specification
Standard coverage: Common specifications include M3-M12 (metric) and 4 # -18 # (imperial), supporting the matching use of countersunk screws and semi countersunk screws.
Customization service: We can provide non-standard customization according to customer needs, adapting to special thread or size requirements.
2, Function and application scenarios
Tightening and strengthening
Anti loosening design: The concave convex structure increases friction and reduces the risk of screw loosening caused by vibration or impact. It is widely used in precision fields such as mechanical equipment and electronic instruments.
Sealing Assistance: Some models (such as O-section) can be used with sealing rings to achieve shaft or hole sealing, suitable for scenarios such as cylinders, valves, and fittings that require leak prevention.
Scene adaptation
Industrial manufacturing: In automotive parts, food machinery, and pharmaceutical equipment, fisheye gaskets ensure long-term stable operation of the equipment due to their wear and corrosion resistance.
In the civilian field, in furniture installation and home appliance maintenance, the risk of material deformation is reduced and the service life is extended by dispersing pressure.
3, Technical parameters and advantages
Temperature resistance range -40 ºC to 200 ºC -20 ºC to 150 ºC Strong adaptability to extreme environments
Service life of more than 5 years (under normal working conditions) 2-3 years, maintenance costs reduced by 60%
4, Industry application cases
automobile making
Sliding tower top modification: By optimizing the suspension system with fisheye washers (wave top), the adhesion of tires in corners is improved, resulting in a 10% -15% increase in vehicle cornering speed.
mechanical engineering
Hydraulic cylinder sealing: Fish eye gaskets (such as copper straw caps) are used at the high-pressure oil pipe joints to effectively prevent oil leakage and ensure stable system pressure.
construction work
Steel structure connection: Add fisheye washers at the bolt fastening points to disperse stress concentration and reduce the risk of connection failure caused by material fatigue.
5, Selection and usage suggestions
Key points for purchasing
Material matching: Choose the material according to the usage environment. Stainless steel 304 is preferred for humid environments, and SUS316 is optional for highly corrosive environments.
Specification confirmation: Check the thread size and screw model to ensure that the inner diameter of the washer matches the outer diameter of the bolt, avoiding installation that is too loose or too tight.
Precautions for use
Installation specifications: Avoid skewed installation of gaskets, ensure even force distribution on protrusions, and prevent deformation caused by excessive local pressure.
Regular inspection: In environments with severe vibration or high temperature, it is recommended to check the condition of the gasket every 6 months and replace worn parts in a timely manner.