The connecting rod bolt H 33030 is a safety-critical fastening element designed to secure the connecting rod and cap assembly in the Sulzer ASL25 engine. Engineered for extremely high tensile loads and fatigue resistance, this bolt maintains clamping force under dynamic inertia forces and high-cycle engine operation. Manufactured with precise threading and controlled material properties, it ensures reliable preload, prevents loosening, and safeguards the integrity of the crank mechanism, directly supporting long-term engine reliability and operational safety.