In the demanding world of geotechnical engineering, efficient and reliable anchoring solutions are critical. SupAnchor, Asia's leading manufacturer and exporter of self-drilling anchors, has introduced its T Thread Self-Drilling Hollow Anchor, a product designed to meet the rigorous requirements of tunneling, slope stabilization, and foundation reinforcement. Built in compliance with the T International Standard, this innovative self drilling anchor system combines drilling, grouting, and reinforcement into a single operation, significantly reducing construction time in unconsolidated and cohesive soils.
The T thread anchor follows the proven "3-in-1 principle": the ribbed hollow steel bar serves as a sacrificial drilling rod, an injection tube, and a reinforcing bar. This eliminates the need for separate casing systems, streamlining workflows on site. Whether for temporary shoring or permanent support, the anchor's integrated design enhances efficiency and safety, a hallmark of SupAnchor's engineering philosophy.
The T thread self-drilling hollow anchor is available in a range of diameters and load capacities to suit diverse geological conditions. Key models include the T30/16 and T40/16, each optimized for specific load requirements. The hollow bar features left-hand or right-hand T threads compatible with standard rotary percussive drilling equipment, ensuring ease of use on site.
| Parameter | T30/16 | T40/16 |
|---|---|---|
| Outside Diameter (mm) | 30 | 40 |
| Internal Diameter (mm) | 16 | 16 |
| Cross Sectional Area (mm²) | 343 | 913 |
| Ultimate Load (kN) | ≥220 | ≥660 |
| Load at 0.2% Yield (kN) | ≥180 | ≥525 |
| Weight (kg/m) | 2.70 | 7.17 |
| Thread Type | T40 International Standard / Left or Right | |
The relative rib area (fR) of the bar is optimized to range from 0.21 to 0.33, maximizing bonding with grouting materials. Rib surfaces are designed at a 45° angle, reducing splitting forces in surrounding rock or soil; at maximum load, crack widths remain below 0.1 mm. This geotechnical reinforcement system ensures structural integrity even in challenging conditions.
The T thread anchor is widely used in tunneling for face support and forepoling, slope stabilization for highways and mines, and foundation reinforcement in soft or cohesive soil. Three anti-corrosion treatments are available: hot-dip galvanizing for dry environments, SupCoating (HDG plus epoxy) for moderately corrosive conditions, and premium stainless steel for marine or chemical plant projects. This adaptability makes the hollow bar anchor a versatile choice for both permanent and temporary works.
SupAnchor's T thread anchor addresses the global demand for efficient, reliable drill-and-grout bolt solutions. As the No.1 manufacturer in Asia, SupAnchor emphasizes R&D and innovation, holding ISO certifications and delivering products to projects worldwide. The company's commitment to quality and standardization ensures compatibility across accessories, simplifying logistics for contractors.
With a comprehensive range of models from T30 to T103, the T thread series meets diverse load and size requirements, from light-duty to heavy-duty applications. SupAnchor's brand values of professionalism, innovation, and collaboration are evident in this product, which continues to set benchmarks in the geotechnical industry. For engineers seeking a self drilling anchor bolt that combines efficiency, durability, and adaptability, the T thread anchor represents a state-of-the-art solution.
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