Content with Preloaded assemblies

08 February 2022
It is the requirement that the manufacturer of the EN 14399 assembly will supply them suitably lubricated. The lubrication can be applied either on the bolt thread (external) or the nut thread (internal). Andrews Fasteners, in a majority of cases, choose to apply lubrication on the internal thread of the nuts. Due to the method used to lubricate the nuts, typically they need to be immersed in lubricant in full. Depending on the type of process used, the appearance of the nuts can differ, especially on Hot Dip Galvanised (HDG) nuts.
Read more about The different appearance of lubricated nuts on EN 14399 assemblies

29 March 2017
Andrews Fasteners is one of only few companies available on the local market, that is capable of manufacturing in the UK k-class K1 and K2 high strength structural preloaded bolt assemblies (System HR, EN 14399-1) for tightening with predefined torque values according to the k-factor. We are able to supply CE Marked preload bolt assemblies, for hexagon head and countersunk head bolts in k-class K2 for diameters M16 and M20 with the shortest lead time.
Read more about Preloaded assemblies k-Class K1 and K2 manufactured in the UK