If you are talking about the mast post that goes through the front crossbeam, there is not an easy way to do it. There is a lot of load at that point. Nylon and teflon washers flow after a few months and leave things loose.



Once I went to the trouble of installing teflon shrink tube on the post and using ceramic coated washers. It only worked a little better than cleaning and spraying with corrosion inhibiter once a year.