This European Standard specifies the characteristics and performance of mechanical fasteners made of steel, including nails, screws and staples, intended to be used for the fixing of gypsum board in accordance with EN 520, gypsum boards with fibrous reinforcement in accordance with EN 15283-1 and EN 15283-2, composite panels according to EN 13950, products from secondary processing in accordance with EN 14190 and suitable ancillary products, to timber and metal, as appropriate, in building construction works. The fasteners secure the board to the framing enabling its surface to be finished by jointing or plastering to receive decoration. They can also be used for the construction of the framing and for the connection between substructure and load bearing components and for fixing boards together. This European Standard covers the following product performance characteristics: reaction to fire and flexural strength to be measured according to the corresponding European test methods. It