Diyuk Flat Washers - DIN 125 ISO 7089

Form A denotes the standard dimensions for flat washers as defined in DIN 125, which provides a specific outside diameter and thickness optimized for general load-bearing applications.

It is generally not recommended as the different electrochemical potentials can lead to galvanic corrosion; pair them with A4 or A2 stainless steel bolts.

A4 stainless steel is generally non-magnetic, though some slight magnetism may be induced during the cold-working manufacturing process.

200HV refers to the Vickers hardness scale, indicating a surface hardness sufficient for standard industrial structural requirements.

Yes, stainless steel washers are generally reusable provided they have not suffered from permanent deformation, pitting, or thread stripping.

A4 stainless steel maintains good structural properties at high temperatures, but verify specific limits based on your assembly's thermal expansion requirements.

This is often due to surface contamination from non-stainless tools; use a stainless steel brush to clean the surface and passivate if necessary.

Ensure the correct torque was applied; consider using a thread-locking compound or a spring washer in conjunction with the flat washer if the application is subject to high vibration.