HST4 Performance that matches cast in headed fasteners
HST4 is a high-performing stud anchor with a unique design that allows for variable embedment depth and improved resistance to concrete cone failure, ultimately resulting in a tensile resistance higher than ever before. It has a broad approval range to cover your application requirements and ensure code compliance. It is compatible with Hilti's installation systems, supporting a reliable installation.
Introduction
Stud anchors are widely used for fast and reliable fastening to concrete, and are especially suitable for baseplate fixing, façade brackets, and curtain walls, as well as service fixings in civil infrastructure (e.g. tunnels, bridges, noise barriers) and industrial fastenings (e.g. machine and conveyor belt fixings). However, stud anchors have shown limitations in terms of performance and design flexibility when compared to cast-in or chemical anchors.
HST4 is the latest innovation from Hilti, bringing stud technology beyond existing anchor approval standards for post-installed anchors, while meeting the evolving needs of both specifiers and contractors.
Hilti is committed to giving specifiers higher performing anchoring solutions, which allow for value-engineered and optimised design, securing more peace of mind to translate what they specify into well-executed applications on the jobsite.
HST4 is the result of Hilti’s continuous innovation and research, building on the success of our previous portfolio of stud anchors, such as HSA, HST2, and HST3. The anchor line is available in carbon steel (HST4) and stainless steel versions (HST4-R), offering anchoring solutions for indoor and outdoor applications where corrosion resistance is required.
Opting for HST4 will enable you to optimise baseplate designs, helping to reduce the total cost of ownership and enhancing sustainability for your applications. This is thanks to:
An innovative design that allows for improved resistance to concrete cone failure – up to the level of cast-in headed fasteners – and higher pullout capacity than ever before. This means engineers can now rely on smaller anchor diameters, achieve smaller spacing and edge distances, and further optimise their baseplates. These types of improvements ultimately help to reduce costs and increase sustainability;
The assessment of variable embedment depth, enabling the optimization of anchor lengths to precisely match your load requirements;
A broad range of approved assessments for different load conditions – static loads in uncracked and cracked concrete, seismic C1 and C2, as well as fire loads – as well as compatibility with Hilti’s installation systems, that are less prone to human errors. Just one example is Hilti’s Adaptive Torque Module which automatically provides the correct torque for your specific anchor. This will help to ensure that on the jobsite you get exactly what you specified.