AVK series comply - Half-hexagon With Big Flange Threaded Insert Flat Head,round Internal Hole,open End HBM, HBI

Industrial-grade Fastening Solutions Engineered for High-Vibration and Thin-Sheet Joining

【Executive Summary】

In modern industry, where lightweighting and assembly efficiency are paramount, the reliability of thin-sheet joints determines the product’s lifecycle. As Taiwan’s premier expert in fastening technology, our Semi-hex Large Flange Rivet Nuts leverage the material toughness of Cold Forging and the strict tolerances of CNC Precision. Specifically designed to eliminate the risk of "spin-out" under high torque, we provide the global automotive, aerospace, and heavy machinery supply chains with a stable and enduring foundation for every connection.

【Core Features】

• Semi-hexagonal Body: Superior Anti-rotation Performance The semi-hex geometry creates a powerful mechanical interlock with the pre-drilled hole. Compared to standard round rivet nuts, it significantly enhances Torque-to-turn resistance, ensuring no spin-out during high-torque installation with pneumatic or automated power tools.

• Large Flange Profile: Optimized Load Distribution The oversized flange increases the contact surface area with the base material. This effectively distributes axial loads and prevents "pull-out" or surface crushing in soft materials such as aluminum or composites, maintaining structural integrity under stress.

• Cold Forged Durability: Continuous Grain Flow Unlike machined fasteners, our cold-heading process preserves the continuous grain flow of the metal. This results in superior thread fatigue strength and higher mechanical load limits, even in high-stress environments.

• IATF 16949 Compliance: Supply Chain Consistency From raw material traceability to automated optical inspection (AOI), we strictly enforce quality control to ensure batch-to-batch consistency. This precision meets the low PPM (Parts Per Million) requirements of high-speed automated assembly lines.

【Technical Spec Highlights】

• Material Options: Stainless Steel (SUS304/316), High-grade Carbon Steel, Alloy Steel, and Lightweight Aluminum.

• Surface Treatment: Trivalent Zinc (Cr3+), Zinc-Nickel (Zn-Ni), Geomet/Dacromet—Salt spray resistance from 720 to 1,000+ hours.

• Size Range: M3 to M12 Metric threads, and equivalent UNC/UNF Inch sizes.

• Grip Range: Versatile options available for sheet thicknesses from 0.5mm up to 6.0mm.

【Application Scenarios】

• Automotive: Structural chassis components, EV battery pack housings, and dashboard carrier frames.

• Aerospace & Marine: Airframe/Hull reinforcement, navigation instrument paneling, and support structures in highly corrosive environments.

• Heavy Machinery: Agricultural equipment, high-vibration generator enclosures, and precision electrical control cabinets.