DIN 9021 standard large flat washers are specially designed flat washers with a larger outside diameter than standard flat washers (e.g. DIN 125 or GB97.1). This design provides a larger support area, which helps to distribute the stress on the fastener and reduce damage to the material being secured. These washers are typically used in applications where a larger load bearing surface is required, such as metal structures, mechanical equipment, automotive, construction and other fields.

Carbon Steel: Typically used for general applications.

Stainless Steel: For environments where corrosion resistance is required.

Alloy Steels: Used in applications requiring high strength or high temperature resistance.

Advantage:

Large OD design: Compared to standard size flat washers, DIN 9021 flat washers are notable for their larger outside diameter, which provides a larger support area.

Multiple materials: these washers may be made of different materials such as stainless steel, steel, non-ferrous metals, etc. to suit different corrosion resistance and strength requirements.

Surface treatment: The surface of the washers may be treated with natural color, passivation, plating, etc. to improve corrosion and wear resistance.

Precision Manufacturing: The size and shape of the washers are precisely manufactured according to DIN 9021 to ensure compatibility with other fasteners.

Scope of Application

Structural Steel: Used in steel buildings to connect beams, columns and other structural components, providing a stable and reliable connection.

Machinery and equipment: In machinery and equipment manufacturing, for fixing and adjusting machine parts such as bearings, gears and motors.

Automotive industry: In automotive manufacturing, for connecting automotive components such as chassis and body fixings.

Construction industry: In building and civil engineering, for connecting various structural components, providing stable and reliable connections.