This document specifies, together with EN 14399-1, hardened and tempered plain washers with chamfer intended
for assembly with large series hexagon high-strength structural bolts and nuts with thread sizes from M12 to M36
inclusive.
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 ENV 1090-1 is made.
BS EN 14399-6:2005 Referenced Document
EN 14399-1 High-strength structural bolting assemblies for preloading - Part 1: General requirements*, 2015-02-01 Update
EN ISO 10684 Fasteners - Hot dip galvanized coatings (ISO 10684:2004/Cor 1:2008)*, 2009-04-08 Update
EN ISO 3269 Fasteners - Acceptance inspection (ISO 3269:2019)*, 2019-09-18 Update
EN ISO 4759-3 Tolerances for fasteners - Part 3: Washers for bolts@ screws and nuts - Product grades A@ C and F*, 2016-06-01 Update
BS EN 14399-6:2005 history
2015BS EN 14399-6:2015 High-strength structural bolting assemblies for preloading. Plain chamfered washers
2009BS EN 14399-10:2009 High-strength structural bolting assemblies for preloading - Part 10:System HRC - Bolt and nut assemblies with calibrated preload
1969BS 4395-2:1969 Specification for high strength friction grip bolts and associated nuts and washers for structural engineering. Higher grade bolts and nuts and general grade washers