
Perfect partners: DYWI® Drill Hollow Bar & HTH mesh
Introducing our High Tensile Hex (HTH) Mesh. Now part of our geotechnical portfolio, it seamlessly integrates with the DYWI® Drill Hollow Bar System for faster installation, easy handling, and long-lasting performance—delivering strength, flexibility, and efficiency without compromise.
DYWI® Drill Hollow Bar: a name you know and trust
DYWI® Drill Hollow Bar is a fully threaded, self-drilling solution for ground engineering applications, including soil nailing, slope stabilization, micropiling, and rock bolting. Its design allows for simultaneous drilling and grouting, eliminating the need for casing in weak or collapsing soils.
Manufactured to the highest standards and compliant with European regulations, DYWI® Drill Hollow Bar ensures reliable performance in critical geotechnical projects. Its efficient installation process reduces on-site time and minimizes disruption, making it ideal for restricted access areas and sensitive environments.
Beyond its versatility, DYWI® Drill Hollow Bar enhances structural stability by reinforcing unstable ground and effectively transferring loads. Whether stabilising slopes, securing retaining walls, or strengthening foundations, it delivers durable and long-lasting reinforcement.


Why choose DYWI® Drill Hollow Bar?
Faster installation & flexibility
Simultaneous drilling and grouting; left-hand thread compatible with percussive drill tooling - reducing installation time.
Versatile in challenging conditions
Fully threaded system allows for easy extension and flexibility in deep or complex applications even in poor soil.
Thread & adjustment options
R25-R51 with rope thread; T76 with trapezoidal thread. External thread allows on-site cutting, coupling, and termination with a nut.
Wide drill bit range
Suitable for soils and rock, with tungsten carbide options. Whatever your project demands, we have the right solution.
DYWIDAG HTH Mesh: new high-tensile active system
Introducing our new high tensile mesh, a powerful addition to our existing range of ground engineering products. This patented product is designed as an active system for slope stabilisation projects, offering outstanding performance in challenging environments.
Working in sync with our DYWI® Drill hollow bar and GEWI® threadbar systems, the DYWIDAG HTH Mesh offers high-performance protection against rockfall and soil instability, with a versatile and cost-effective solution for rail, highway, and infrastructure projects. Available with corrosion-resistant coatings, easy installation, and superior strength, this mesh is the ideal choice for your slope stabilization needs.


Why choose HTH Mesh?
High-performing complete system
The high tensile and punching strengths ensure robust protection against rockfall and soil instability. Complements our DYWI® Drill hollow bar and GEWI® threadbar.
Versatile application
Our HTH mesh is a versatile solution for complex project requirements, ideal for various infrastructure projects including highway and rail ground support.
Corrosion-resistant
Our patented high tensile double twist mesh is available in a range of coatings from class A, to stainless steel offering outstanding performance in challenging environments.
Cost-effective
Competitively priced across the full range, delivering reliability and performance where it matters most.
Keep your project moving with reliable delivery
We've optimized our supply chain so you can stay focused on what matters most—getting the job done right, on time. With HTH Mesh and DYWI® Drill Hollow Bar readily available, you can keep your project moving without delays. Backed by industry expertise and proven performance, our ground engineering products are in stock and ready for fast, direct delivery.
Compliance & quality assurance
At DYWIDAG, we prioritize safety, performance, and reliability. Our solutions meet the highest industry standards, ensuring confidence in every application.
European Organisation for Technical Assessment (EOTA) .
ISO 9001 quality assurance.
All products rigorously tested for performance and reliability.
For expert guidance on your next project, contact our technical team. We ensure fast delivery and provide comprehensive support throughout your project lifecycle.