External Enclosure to hold Arduino Nano/STM32, max6675 board, sd reader, ads1115 etc. on a protoboard.

I used JST connectors(XH2.54) for the connections and heat set threaded inserts.

ProtoBoard 7x9cm: https://www.aliexpress.com/item/1005001599501148.html

JST Connectors: https://www.aliexpress.com/item/4000126563819.html

M3 5.7x4.6 Brass Heat Set Threaded Inserts: https://www.aliexpress.com/item/1005002288716120.html

Single Row Female Socket 2.54mm: https://www.aliexpress.com/item/4000032526213.html