The DIN 45 thread is a standardized 45 mm screw thread specified by the Deutsches Institut für Normung e.V. (DIN), the German Institute for Standardization. This widely used thread type is commonly found on containers such as jerricans and carboys, particularly in European and Asian markets. Its design ensures compatibility across a range of caps and closures, making it ideal for applications requiring secure seals, such as the storage and transport of liquids like chemicals, oils, and food-grade products.

The DIN 45 thread is also notable for its versatility, as it can accommodate tamper-evident caps and dispensing systems for added safety and convenience. Additionally, its precise engineering minimizes the risk of leaks, even under high-pressure or challenging conditions, making it a trusted choice in both industrial and laboratory settings.