This Universal Screw Terminal Adapter DIY kit makes it easy to connect popular development boards and microcontroller modules with up to 40 pins to external wires, sensors, relays, power supplies, and control circuits without relying on loose jumper wires.
The kit includes a high-quality RoHS-compliant, lead-free PCB, screw terminals, and female pin headers. After assembly, suitable development modules can simply be plugged into the headers, while all important signals are made available through clearly accessible screw terminals. This is especially useful for prototyping, testing, education, small automation projects, and semi-permanent installations where reliable wiring is preferred over breadboard connections.
The Universal Screw Terminal Adapter is designed to fit most development module with two parallel pin rows and up to 2x20 pins, including Arduino Nano-style boards, ESP32 and ESP8266 modules, STM32 Blue Pill and Black Pill boards, and many other compatible modules. Multiple header positions support six different row spacings from 600 to 1100 mil (15.24 mm, 17.78 mm, 20.32 mm, 22.86 mm, 25.4 mm, and 27.94 mm).
The compact 75 × 50 mm PCB includes four mounting holes, making it easy to attach the assembled adapter to a base plate, enclosure, or project panel. For industrial-style installations, we also offer a Universal DIN Rail Mounting Kit for standard 35 mm DIN rails, allowing suitable development modules to be mounted neatly and securely inside a control cabinet.
This kit is supplied as a DIY soldering kit and is ideal for makers, students, technicians, and developers who want a clean and flexible wiring solution for common microcontroller modules.
Features
- Universal screw terminal adapter for development modules with two pin rows
- Suitable for Arduino Nano-style boards, ESP32, ESP8266, STM32 Blue Pill, STM32 Black Pill, and many similar modules
- Supports row spacings from 600 to 1100 mil: 15.24 mm, 17.78 mm, 20.32 mm, 22.86 mm, 25.4 mm, and 27.94 mm
- PCB dimensions: 75 × 50 mm
- Four mounting holes for easy installation
- RoHS-compliant, lead-free PCB
- Includes PCB, screw terminals, and female headers
- Great for prototyping, education, testing, automation, and control cabinet projects
- Optional 35 mm DIN rail mounting kit available separately
Package Includes
- 1 × Screw terminal adapter PCB 75x50mm
- 20 x Screw terminals 2P, 3.5mm
- 3 x Female pin headers 2x20
Note: Accessories in pictures are not included and for illustration only.










