Based on this product's specifications, here are some alternatives and similar models
Cable Gland Wiska ATEX M40 Stainless Steel ESSKE 40, pack of 5
Summary description:
Wiska ATEX cable gland ESSKE 40 in M40 thread size, made of stainless steel and supplied as a pack of 5. Designed for secure cable entry and strain relief in potentially explosive atmospheres where ATEX compliance is required. Suitable for industrial electrical enclosures, junction boxes and equipment requiring corrosion-resistant, robust cable sealing.