ÖNORM EN ISO 898-2

This document specifies the mechanical and physical properties of nuts made of non-alloy steel or alloy steel, when tested at the ambient temperature range of 10 °C to 35 °C. This document applies to nuts: - with ISO metric thread (see ISO 68-1), - with diameter/pitch combinations according to ISO 261 and ISO 262, - with coarse pitch thread M5 to M39, and fine pitch thread M8×1 to M39×3, - with thread tolerances according to ISO 965-1, ISO 965-2 or ISO 965-5, - with specified property classes 04, 05, 5, 6, 8, 10 and 12 including proof load, - of three different nut styles: regular nuts (style 1), high nuts (style 2) and thin nuts (style 0), - with a minimum outside diameter or width across flats s = 1,45D, - able to mate with bolts, screws and studs with property classes in accordance with ISO 898-1, and - intended to be used in applications ranging from –50 °C to +150 °C, or up to +300 °C. For additional specifications applicable to hot dip galvanized nuts, see ISO 10684. For nuts designed for particular applications, see ISO/TR 16224. This document does not specify requirements for functional properties such as: - prevailing torque properties (see ISO 2320), - torque/clamp force properties (see ISO 16047 for test method), - weldability, or - corrosion resistance.