DIN 7089 is a German standard for D washers
(square washers for steel structures).
It specifies rectangular or square-shaped flat
washers.
These washers are used in structural steel
applications.
They provide larger bearing surface under bolts or
nuts.
Commonly used with high-strength bolts like DIN
6914.
Manufactured from high-quality steel material.
Available in different thicknesses and sizes.
Often supplied in plain or galvanized finish.
Helps distribute load and prevent surface damage.
Suitable for heavy-duty structural fastening
systems.