The DIN 126 standard published by the German Standardization Institute (DIN) describes the requirements for flat washers and defines a test method. Likewise, in the ISO 7091 standard published by the International Standards Organization (ISO), the features of the normal series, product class C flat washers in hardness class 100 HV and nominal sizes (nominal thread diameters) ranging from 1,6 mm to 64 mm (inclusive) are described (ISO). 7091 Flat washers - Regular series - Product class C).
Washers of hardness class 100 HV are suitable for:
If dimensions other than those listed in this standard are required, they should be selected from those given in the ISO 887 standard. When soft material parts are clamped or large clearance holes are used in the workpiece, the user should check the technical suitability of this type of washer.
Flat washers are the most common type of washer. Flat washers do not have a locking function, but are instead used to protect the mating surface from damage. They do this by increasing the surface area to help distribute the load, especially in soft materials or over large or slotted holes. Flat washers are fitted between the bolt head/nut and the mating surface. The bolt joint is then tightened in the same way as an unsecured bolt.
Most flat washers are categorized into three broad types:
Our organization, among the numerous test, measurement, analysis and evaluation studies it has given for businesses in various sectors, with its trained and expert staff and advanced technological equipment, within the scope of DIN 126 standard, for flat washers and within the scope of ISO 7091 standard, flat washers, normal series (products). It also provides testing services for class C).
To get an appointment, to get more detailed information or to request an evaluation, you can ask us to fill in our form and reach you.
