When attaching to a panel with a height of 50 mm (this time, Takachi Metal YM - 250), it is small for Omron A 8 M and too large for A 8 A. This was just right. I was looking for no I / O display, but there are almost two-pole switches to display. DPDS can be selected without display.
Since the spring part is also a resin, even if it is fixed, there is a problem such as no strength and wobble. Since the spring part seems to lose its strength due to the heat of soldering, metal is also desirable here.