Based on this product's specifications, here are some alternatives and similar models
Cable gland Rittal SZ 2411.671 polyamide M63x1.5 light grey, pack of 3
Summary description:
Rittal SZ 2411.671 is a polyamide cable gland in light grey supplied as a pack of 3. Thread size M63x1.5, material polyamide, designed for secure cable entry and strain relief in enclosures and control cabinets. Suitable for industrial electrical installations where robust, non-metallic cable management and environmental protection are required.