The connecting rod bolt H 33030 is a safety-critical fastening element used to secure the connecting rod and cap assembly in the Sulzer ASL25 engine. Engineered to withstand extremely high tensile forces, dynamic loading, and cyclic fatigue, this bolt maintains precise clamping force throughout continuous engine operation. Its controlled material properties and precision threading ensure reliable preload, prevent loosening, and protect the integrity of the crank mechanism, directly supporting long-term engine reliability, mechanical stability, and operational safety.