Based on this product's specifications, here are some alternatives and similar models
Simet PG7 Halogen-Free Cable Gland for 3.5-6mm Cables
Summary description:
The Simet PG7 halogen-free cable gland is designed for secure cable entry and strain relief in electrical installations. Suitable for cables with a diameter of 3.5 to 6 mm, this component ensures a reliable seal and protection against environmental factors. Its halogen-free construction makes it an ideal choice for safety-critical projects where fire safety standards are required. Durable and easy to install in various electrical enclosures.