Tunneling
Safety-Critical Fasteners For The Tunnelling Industry
We supply high-performance fasteners and embedded accessories designed to withstand extreme loads, environmental conditions, and long service life requirements for major tunneling and bridge construction projects. With decades of expertise in connection solutions for concrete segmentally lined tunnels and bridge structures, we support critical infrastructure projects worldwide.
Product Categories
Tunneling Bolts & Fasteners
M12 to M100 standard sizes, with special fasteners manufactured to bespoke requirements.
Embedded Accessories
Including bolt sockets, dowels, spacers, grout/lifting sockets, plugs, and non-return valves.
Bridge Connection Systems
High-strength fasteners for steel and concrete bridge structures.
Corrosion-Resistant Coatings
Advanced coatings for extended service life in aggressive environments.
Tunnelling Bolts & Accessories
Hex Head Bolting System
Plastic Socket's
Threaded Grout Lifting Sockets
Guide Rods
Packers
MODULOCK™ Systems
Alignment Dowels
Intrados Accesories
Intrados Sockets
Barcode Plate
Accessories Holders
Curved Tunnel Bolts
Market Advantages
A long history of supplying the tunnelling and bridge sector with specialist fasteners.
Strategically located facilities for efficient worldwide distribution.
In-house manufacturing and molding capabilities for tailored requirements.
High-performance coatings to ensure durability in extreme environments.
A ‘one-stop shop’ for bridge and tunnel fasteners and accessories.
Product Specifications
M12 to M100 (standard) with custom options available.
High-strength steel, including property classes 8.8, 10.9, and 12.9.
Galvanized, sherardized, and zinc flake for extended durability.
North America, Europe, and Asia.
