Based on this product's specifications, here are some alternatives and similar models
Enclosure mounting bracket Rittal PS 4612.000 — stainless steel, black, pack of 4
Summary description:
Rittal PS 4612.000 is a stainless-steel mounting component supplied in black finish. Delivered as a pack of four pieces, each unit is made of stainless steel and suited for enclosure or panel mounting where corrosion resistance and durable metal hardware are required. Ideal for industrial cabinets, electrical enclosures and machine housings.