The HELICAL SPRING WASHER M20 – ID21.0 OD37.0 Thk3.2 CLASS 140HV is a high-quality fastener designed for durability and reliability. Featuring a ZINC-PLATED 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: ZINC-PLATED
Standards: DIN 127 / ISO 4042
Strength: LOW STRENGTH with tensile strength of 140 HV and yield strength of nan.