High-Strength Alloy Steel Hexagon Bolt for Hydraulic Rock Drills Engineered for extreme underground mining conditions, this hexagon bolt ensures reliable fastening in high-pressure hydraulic systems. Constructed from 10.9 grade alloy steel with a zinc-plated surface (48-hour salt spray test compliance), it withstands continuous dynamic loads while resisting corrosion in harsh environments.
Technical Specifications & Design The bolt adheres to ISO 898-1 standards for mechanical properties (1040 MPa tensile strength) and ISO 4014 for hexagonal head dimensions (19 mm width across flats). Its M12x1.75 coarse threads provide a secure fit in hydraulic cylinder assemblies and drill rig components. The 120 N·m installation torque specification ensures optimal clamping force in high-vibration applications.
Performance Advantages
Corrosion Resistance: Zinc plating exceeds industry standards, providing long-term durability in wet or corrosive mining environments.
Precision Fit: ISO-compliant dimensions ensure compatibility with standard hydraulic system components.
High Strength: 10.9 grade construction offers superior resistance to fatigue and deformation under heavy loads.
Ease of Installation: Clear torque specifications streamline maintenance processes.
Applications
Underground Mining: Critical for securing high-pressure hydraulic lines in rock drills used in tunnel boring and ore extraction.
Heavy Machinery: Used in excavators and loaders to maintain structural integrity in dynamic hydraulic systems.
Industrial Hydraulics: Supports presses and material handling equipment, ensuring consistent pressure retention in repetitive motion tasks.
