Hey, I happened upon a clever trick the other day. I had sitting around some economy and drop-in 1/4-20 t-nuts from 8020 (the extrusion guys). Turns out these work perfectly on my Taig mill. I used a 1/4-20 stud in the t-nut and then put a nut and washer on top of the work-piece. These t-nuts are cheap, and it worked like a charm!