Flat washer DIN 125A M20 / 21.0 stainless steel A4

Product detailed description

The DIN 125A M20 flat washer made of A4 stainless steel is a structural component intended for use in fastening applications where high corrosion resistance is required. This washer is manufactured according to DIN 125A, which is equivalent to ISO 7089 and ČSN 021702, which guarantees its compatibility and standardized dimensions for a wide range of applications.

The washer has an outer diameter d2 of 37 mm, an inner diameter d1 of 21 mm and a thickness s of 3 mm. It is designed for use with metric threads M20. The A4 material from which the washer is made is stainless steel, which provides excellent resistance to chemicals and corrosion, making it ideal for use in aggressive environments such as marine or chemical applications.

The washer is flat and chamfer-free, which means that its surface is straight without any bevels, which ensures an even distribution of pressure when tightening the fastener. This design is particularly suitable for applications where it is necessary to prevent damage to the surface of the materials being joined.

The 140 HV classification indicates the hardness of the material, which ensures sufficient strength and resistance to deformation under mechanical stress. The washer has no additional surface treatment, which is common for stainless steel materials that naturally resist corrosion.

This washer is suitable for use in a variety of industries including engineering, construction and manufacturing, where it is necessary to ensure a strong and reliable connection with high resistance to external influences.