Vibration-Resistant Screw for Hydraulic Rock Drills This screw is engineered to secure components in hydraulic rock drills, providing reliable fastening in high-vibration environments common in mining and construction. Constructed from 8.8 grade alloy steel, it offers a tensile strength of 800 MPa minimum, ensuring durability under repeated stress from drill operations.
Key Performance Attributes
Material & Durability:
8.8 grade alloy steel balances strength and ductility, withstanding dynamic loads without fracturing. The black oxide coating enhances corrosion resistance, validated through 300+ hours of salt spray testing (ASTM B117), making it suitable for damp underground mining conditions .
Pre-applied medium-strength thread locker prevents loosening under cyclic vibration, a critical feature in rock drills where component movement can lead to system failure.
Precision & Compatibility:
Manufactured to ISO 4762 standards, the screw features metric fine threads (M8×1.0) and a socket head design, ensuring compatibility with standard tools and hydraulic rock drill components such as cylinder mounts, flange connections, and cover plates .
Operational Reliability:
Rated for a maximum torque of 35 Nm, it provides secure fastening while allowing for easy removal during maintenance. The -30°C to +100°C operating range ensures performance stability in extreme temperature conditions, from cold mountain quarries to moderate-heat drill zones .
Applications
Hydraulic Rock Drills: Secures cylinder mounts, flange connections, and protective covers.
Mining Equipment: Suitable for tunneling machines, quarry drills, and exploration rigs requiring vibration-resistant fasteners.
