Padlock with Triangular Key

A unique padlock that requires a triangular key to unlock the shackle. You will need to find a spring in order to make the lock functional. The spring used in the pictures above measures at ~18.48mm long when it's at shelf state and a diameter of ~9.63mm. The exact spring I'm using can be found in a 101-spring assortment from Microcenter. For convince I have linked the product here. ---> https://www.microcenter.com/product/646683/enkay-products-101-piece-spring-assortment