Based on this product's specifications, here are some alternatives and similar models
Angle Bracket DMX KS2 40×40×40×1.5 mm — corner plate
Summary description:
DMX KS2 angle bracket, dimensions 40×40×40 mm with 1.5 mm material thickness. Designed as a corner plate for joining or reinforcing right-angle connections in metalwork, furniture, frames or mounting assemblies. Provides stable support at joints, easy to install with screws or bolts, and suitable for indoor construction, workshops and DIY projects.