High-Precision Tungsten Carbide Threaded Rod with HRA 89-93 Hardness for PCB Drilling Applications

In printed circuit board (PCB) manufacturing, precision and reliability are non-negotiable. From the micro-drills that create countless tiny holes to the fixtures that hold boards in place during processing, every component must perform with micron-level accuracy—cycle after cycle, hour after hour.

Our Tungsten Carbide PCB Threaded Rods are engineered specifically to meet these demanding requirements. Combining the exceptional hardness and wear resistance of tungsten carbide with precision-ground threads, these components serve as critical elements in PCB drilling equipment, fixturing systems, and positioning assemblies where conventional steel threads would wear prematurely or fail to maintain the required precision.

Tungsten carbide PCB threaded rods are used in applications requiring high precision and stability, such as industrial processing tools and positioning tools. They are manufactured from high-quality tungsten carbide, typically in a tungsten-cobalt (WC-Co) alloy, providing exceptional hardness, wear resistance, and durability for critical components that require reliable performance under demanding conditions.

Tungsten carbide threaded rods provide 10-30 times the service life of steel threaded rods in PCB manufacturing applications. This translates directly to:

• Reduced downtime for component replacement
• Lower total cost of ownership
• Consistent positioning accuracy over millions of cycles

With hardness reaching HRA 89-93, our threaded rods resist deformation under clamping forces and maintain thread integrity under repeated use. Tungsten carbide materials offer excellent physical stability, high hardness, good strength, wear resistance, high-temperature resistance, vibration resistance, corrosion resistance, and good rigidity.

Our threaded rods are manufactured to tight dimensional tolerances:

• Thread Accuracy: Precision-ground to specified standards
• Diameter Tolerance: ±0.005mm standard
• Surface Finish: Ground or polished options available
• Concentricity: ≤0.005mm

Tungsten carbide threaded rods maintain their hardness and mechanical properties at high temperatures, making them crucial for operations in elevated temperature conditions. They are also resistant to corrosion from various chemicals and fluids, maintaining performance integrity in harsh environments.

• Drill Bit Shanks: Threaded rods serve as the connection between drill bits and the spindle, providing secure, precise mounting for high-speed PCB drilling operations.
• Spindle Components: Threaded shafts within PCB drilling spindles that require exceptional wear resistance and dimensional stability at high rotational speeds.

• Clamping Systems: Threaded rods for securing PCBs during routing, depaneling, and other processing operations.
• Positioning Assemblies: Precision threaded shafts for adjusting and locking the position of PCB processing tools.
• Tool Holders: Threaded components for mounting cutting tools in PCB routing and profiling equipment.

• Probe Positioning: Threaded rods for precise adjustment of test probes in PCB inspection systems.
• Fixture Components: Durable threaded elements in custom PCB test fixtures that withstand repeated use.

Beyond PCB manufacturing, tungsten carbide threaded rods are also used in:

• Cutting Tool Industry: As components in end mills, reamers, and core pins
• Dies and Punches: For precision metal forming operations
• Precision Machinery: As spindle grinding rods in precision machine tools