A joint nut that works very well in most types of outdoor environments. Hot dip galvanized nuts should also not be used in combination with Aluminium. Hot-dip galvanized and aluminium cannot be combined without creating galvanic currents. Over the years, these can break down the bolted joint or the material around the joint. This type of nut is mainly chosen when you do not need to weld it on, but still want to have complete rust protection. In the event that you still need to weld, clean the surface close to the joint from galv, ensure good ventilation, use personal protective equipment and apply a generous layer of cold galv after you have cleaned the welded joint. It is worth noting that the joint nut and the bolt should be in the same material for the joint to function as intended.