Gumb M4

thingiverse

The M4 screw head is specifically designed for manual tightening without requiring a screwdriver or wrench, making it ideal in situations where such tools are not readily available. Key features of this screw include an outer diameter of 9.5mm, a washer thickness of 0.8mm, and a knob height of 8mm. It also has an across flats measurement of 7mm, a bottom thickness of 2mm, and a nut thickness of 2.5mm. The screw boasts six slots with a resolution of 0.5, and its knurled section has a diameter of 16mm.