Plain washers. Normal series. Product grade A not-for-sale use of materials

use of materials

the required properties of the earth-structure and the environmental conditions

of aerated fire fighting foam concentrate and water

• radiography devices (spotfilm devices) in radioscopy equipment

Plain washers. Normal series. Product grade A not-for-sale use of materials1 Scope This International Standard specifies the characteristics of normal series, product grade A plain washers in the 200 HV and 300 HV hardness classes and of nominal sizes (nominal thread diameters) ranging from 1,6 mm to 64 mm inclusive. Washers of hardness class 200 HV are suitable for hexagon bolts and screws of product grades A and in property classes up to and including 8. 8; hexagon nuts of product grades A and in property classes up to and