Magnet attachment for broom handle

I dropped a black screw on a black driveway last week, took a while to find it. So I made this. It is a remix from T3CHKOMMIE. Most of my tools here in MN use the same thread as his, but I had to increase the X, Y to 108% (already incorporated into the stl file). I cut about 5 mm off the top because my favorite handle fit better without it.

I used extra shell layers for strength, and I printed it at a 20 degree angle so the threads remained vertical. The support material made the bottom ugly