This is a Screw Terminal with 3.5mm pitch pins. Comes in 2, 3, or 4 positions and have the really cool feature of slide-locking together to form any size you need (4, 5, up to 20 without problems). Rated up to 300V @ 10A. Terminal can accept 26 to 16AWG wire. 3.5mm/138mil pin pitch will not fit standard 0.1" perf boards but this is the most common pitch screw terminal. https://elecena.pl/product/15951651/screw-terminals-3-5mm-pitch-4-pin 2019-10-07 https://elecena.pl/product/15951651/screw-terminals-3-5mm-pitch-4-pin 2022-02-21 https://elecena.pl/product/15951651/screw-terminals-3-5mm-pitch-4-pin 2025-04-11 https://elecena.pl/product/15951651/screw-terminals-3-5mm-pitch-4-pin 2025-04-14 https://elecena.pl/product/15951651/screw-terminals-3-5mm-pitch-4-pin 2025-06-04 https://elecena.pl/product/15951651/screw-terminals-3-5mm-pitch-4-pin 2025-06-06