The SS316 Spring Washer is a corrosion-resistant fastening component designed specifically for demanding environments such as solar photovoltaic (PV) mounting systems, rooftop solar structures, and outdoor industrial applications. Manufactured from AISI 316 stainless steel, it delivers excellent durability, long-term load stability, and superior resistance to harsh weather conditions.
With the rapid growth of solar energy systems worldwide, reliable fastening hardware has become critical for ensuring structural integrity and system safety. SS316 spring washers play an essential role in maintaining consistent clamping force and preventing loosening caused by vibration, thermal expansion, and wind loads.
Superior corrosion resistance, especially in coastal, humid, and high-salinity environments
Excellent performance in outdoor PV systems exposed to rain, UV, and temperature changes
Provides continuous spring tension to prevent bolt loosening under vibration and dynamic loads
Ensures stable and secure fastening over long service life
Maintains elasticity under heavy load conditions
Ideal for solar panel mounting rails, brackets, and structural connections
Suitable for harsh outdoor environments including deserts, rooftops, and marine installations
Reduces maintenance costs and improves system reliability for solar power plants
SS316 spring washers are widely used in photovoltaic mounting systems, including:
Solar panel mounting brackets
Aluminum rail fastening systems
Roof-mounted solar structures
Ground-mounted solar farms
PV module frame connections
Inverters and support structure assembly
They are especially recommended for coastal solar projects, offshore installations, and high-humidity regions, where corrosion resistance is critical.
Compared with standard stainless steel grades, SS316 offers enhanced resistance to chlorides and salt corrosion, making it the preferred choice for long-term outdoor solar installations. It ensures that fastening points remain stable and secure throughout the entire lifecycle of the PV system.
In solar engineering, even minor loosening can lead to efficiency loss or structural risk. SS316 spring washers help prevent these issues by maintaining consistent preload in bolted joints.
Improved structural safety of PV mounting systems
Reduced maintenance and replacement frequency
Enhanced reliability in extreme environments
Compliance with international solar installation standards
Cost-effective solution for long-term projects
Material: SS316 / AISI 316 stainless steel
Type: Split spring washer / lock washer
Standards: DIN 127 / DIN 7980 (custom available)
Sizes: M3 – M36 (custom sizes supported)
Surface: Natural stainless steel finish
