Full Description ADOPTED_FROM:EN 14399-5:2015 This document specifies, together with EN 14399-1, hardened and tempered plain washers intended for assembly with large series hexagon high-strength structural bolts and nuts with threads from M12 to M36 inclusive. Washers according to this standard can be applied under the nut only. NOTE Attention is drawn to the importance of ensuring that the washers are correctly used if satisfactory results are to be obtained. For recommendations concerning proper application, reference to EN 1090-2 is made.
NS-EN 14399-5:2015 history
2015NS-EN 14399-5:2015 High-strength structural bolting assemblies for preloading — Part 5: Plain washers