I purchased a thick thing with a small volume screw so I needed it. It was perfect at M7 pitch 0.75. Depending on the volume, there is also M8, and attention is necessary because the S dimensions of the attached screws are also different.
I bought a pillow, considering buying a nut to lock the axillary screw. However, it was not normally available at the 0.5 mm pitch of the M5, and it was finally found out here. Handling of special screws is appreciated. There were a lot of them, but it is cheap so there is no problem. If there is also an emblem screw of a specific one, it is saved when lost.
The pitch 0.75 of the M7 that was said to be no doubt checking on the net was a little smaller than usual. On the quality this nut is not a problem. There were thousands of matching screws for the pipe in large quantities and it was not very suitable for the application. It is something I would like you to sell at least 10 units.