HIGH TENSILE ZINC METRIC FLANGE BOLT & NUT PACK

High tensile metric flange bolt and nut packs are specialized fasteners used for high-stress applications in automotive, industrial, and construction environments. Their unique design combines the strength of a high-tensile bolt with an integrated flange that acts as a built-in washer to distribute pressure evenly and prevent loosening under vibration.

Key Functions and Design Benefits
Load Distribution: The integrated flange provides a wider bearing surface, spreading the clamping force over a larger area to protect materials from damage and prevent the bolt head from "cutting into" the surface.
Vibration Resistance: These fasteners are highly effective in environments with constant movement. Serrated versions have "teeth" on the underside that grip the mounting surface, creating a locking effect that prevents loosening.
Simplified Assembly: By combining the bolt and washer into a single unit, they reduce the number of individual parts (e.g., fumbling with separate washers), which speeds up installation and reduces errors.
High Strength: Grade 8.8 standards, they can withstand significant tension and shear forces where standard fasteners might fail.

Common Applications
Automotive: Crucial for securing high-vibration and high-heat components such as engine blocks, transmissions, exhaust systems, suspension linkages, and brake calipers.
Industrial Machinery: Used in assembly lines, factory equipment, and agricultural machinery like tractors to fasten moving parts that require a stable, durable connection.
Construction & Engineering: Essential for structural steel frameworks, bridges, and infrastructure projects where they join steel beams and columns.
Piping and HVAC: Applied in high-pressure pipelines and ductwork to create leak-proof seals between flanges.