Hinge block 1 x 2 - vertical locking catch
https://gyazo.com/aad30665a066fbfef240067fe771b83f
---
This page is auto-translated from /nishio/ヒンジ ブロック 1 x 2 - 垂直ロック キャッチ. If you looks something interesting but the auto-translated English is not good enough to understand it, feel free to let me know at @nishio_en. I'm very happy to spread my thought to non-Japanese readers.