The HELICAL SPRING WASHER M20 – ID21.0 OD37.0 Thk3.2 CLASS 300HV is a high-quality fastener designed for durability and reliability. Featuring a HOT-DIP GALVANIZED finish, this fastener offers superior corrosion resistance and performance in demanding environments.

It is commonly used in construction, mining, manufacturing, and other industrial applications where secure fastening is critical.

Size: M20 – ID21.0 OD37.0 Thk3.2
Coating: HOT-DIP GALVANIZED
Standards: DIN 127 / ISO 1684
Strength: HIGH STRENGTH with tensile strength of 300 HV and yield strength of nan.