I added the spring. It is a plate of steel that I cut an opening the width of the "nut". I welded two 1/8" steel rods to it that slide in the grooves one what ever that box is called. And the washers and spring to hold it down. I Have had it on there a few weeks and no failer yet. I don't know when I would get the time but if I can I'll make you one free. For now my little shop has been non stop for a while. The only tricky part is welding the rods on it if you try it your self or you might think of a better way than I did.
Contractor Talk - Professional Construction and Remodeling Forum
A forum community dedicated to professional construction and remodeling contractors. Come join the discussion about the industry, trades, safety, projects, finishing, tools, machinery, styles, scales, reviews, accessories, classifieds, and more!