1. I have received a 3d printed dactyl manuform, and i have realized that most of parts used to hold the kailh hotswap socket is broken. So I want to know which glue is safe for plastic ( it will not melt the plastic ) and can be strong enough to prevent the socket from fly away from the case.
2. Can I use Type-C USB 3-18V adruino instead of Pro Micro USB adruino? Because as what I can see, the specs of two adruinos written on the chip are nearly the same:

(-) Pro Micro USB adruino: ATMEGA32U4; -MU; 2147E; 2147YHE PH

(-) Type-C USB 3-18V: ATMEGA32U4; -MU; 2216E; 2216QG7 PH

https://imgur.com/a/dxgjyGL (link to images of 2 adruinos)