Hex Screw 80055889 High-Strength Alloy Steel Fastener for Hydraulic Rock Drills

High-Strength Alloy Steel Hex Screw
Engineered for extreme underground mining conditions, this hex screw ensures reliable fastening in high-vibration hydraulic rock drill applications. Constructed from quenched and tempered alloy steel (ISO 898-1 Grade 8.8), it withstands dynamic loads up to 800 MPa tensile strength while resisting fatigue failure in repetitive impact environments .

Technical Specifications & Design
The screw features an M12 x 1.75 thread profile (ISO 724) and 50 mm overall length, designed for secure mounting in hydraulic cylinder assemblies and drill rig components. Its zinc-plated surface finish provides 1000+ hours of salt spray resistance, protecting against corrosion from mineral oils and moisture . The hexagonal head (18 mm across flats) allows precise torque application up to 250 N·m, ensuring leak-free connections in high-pressure systems (250 bar continuous operation) .