Filler Spool Securing Bolt

I installed the Filler filament spool holder 2 meters above my V0 and had problems with the spools sometimes slipping when the extruder jerked heavy. This bolt is easy and fast to print and has held up for over a year now without any signs of wear or failing. There is a hole that can be used to secure the bolt with an M3X30 screw and nut. At the beginning i was worried that this might be needed but haven't used it in a few months since the bolt stays in snug. Print settings: Material: PETG/PLA+/ABS Layer Height: 0.24mm Walls: 4 Infill: Grid, 25%