Nut holder M4

These little holders are exactly what I needed for keeping M4 nuts organized during assembly. The fit is snug enough that nothing rolls off my workbench, which saves me tons of time hunting for dropped pieces.

Finally, M4 nuts stay put while I'm tightening bolts—no more chasing them across the workbench. The threaded insert grips firmly without stripping, which makes assembly so much smoother.

I needed a way to keep those tiny M4 nuts from rolling off my workbench, and this holder fits them perfectly without any wobble. It's a solid little helper for any model-building project.