Based on this product's specifications, here are some alternatives and similar models
Support bracket Rittal KX 2309.010 — steel, pack of 4
Summary description:
Rittal KX 2309.010 is a steel support bracket designed for enclosure and panel installations. Supplied in a pack of 4, these steel brackets provide robust mechanical support and fixing for housings, covers or touch-protection assemblies. Suitable for industrial electrical cabinets and mechanical mounting applications where durable steel components are required.