Dremel 3/4"-12 top nut for router table

I have a Dremel 395. I got the Dremel brand router table, which states it fits model 395, and others. But the part that holds the tool near the tip takes a wider neck. The collar will not cinch down around the neck of the 395 leaving play. So, while the bottom attachment point fit the main barrel of the dremel fine, there was no support at the top, which made for a wobbly bit when you put some pressure on it to route.

This is a simple 30mm diameter replacement with a 3/4-12 thread for the top plastic nut on 200-300 series dremel tools to better fit the Dremel branded router table