EXPERTS IN FASTENERS AND WELDING SOLUTIONS when everything fits

Structural bolts

Per page:

EN 14399-4 10.9 HV SET BL

Set of high-strength structural bolts for preloading, HR system with CE marking, black finish and quality 10.9

EN 14399-4 10.9 HV SET ZP

Set of high-strength structural bolts for preloading, HR system with CE marking, zinc plated finish and quality 10.9

EN 14399-4 10.9 HV SET HDG

Set of high-strength structural bolts for preloading, HR system with CE marking, hot-dip galvanised finish and quality 10.9

EN 15048 8.8 ZP – SET 4014+4032

(ISO 4014 ZN + ISO 4032 ZN) Non preloaded structural bolting assemblies with CE-certified, zinc-plated finish and quality 8.8

EN 15048 8.8 HDG – SET 4014+4032

(ISO 4014 ZN + ISO 4032 ZN) Non preloaded structural bolting assemblies with CE-certified, hot-dip galvanized and quality 8.8

EN 15048 8.8 ZP – SET 4017+4032

(ISO 4017 ZN + ISO 4032 ZN) Non preloaded structural bolting assemblies with CE-certified, zinc plated finish and quality 8.8

EN 15048 8.8 HDG – SET 4017+4032

(ISO 4017 ZN + ISO 4032 ZN) Non preloaded structural bolting assemblies with CE-certified, hot-dip galvanized finish and quality 8.8

Structural screws for high-demand joints


Our range of structural screws is designed for fastenings in metal constructions that require high load-bearing capacity and mechanical strength. They are ideal for joints subjected to high stresses, such as those found in steel structures, industrial buildings, towers, bridges, and supports for photovoltaic and wind power installations. We offer high-strength screws manufactured in accordance with standards such as EN 14399-4, which guarantee compatibility with standardised systems.

Types of high-strength screws

We offer specific solutions for structural joints, manufactured in accordance with EN 14399-4 and EN 15048 standards, both with CE marking and available in grades 8.8 and 10.9, with zinc or hot-dip galvanised coatings. These bolts ensure secure and durable mechanical fastenings in metal structures, roofs, wind towers, solar supports and bridges, where structural requirements are at their highest.

EN 14399-4 – Structural connections with preload

High-strength structural fastener set including bolt, nut and double washer, manufactured in grade 10.9, HV system and class K1. Requires controlled tightening by torque or combined method. It is suitable for joints subjected to high tensile forces, such as in bridges, industrial buildings or main load-bearing structures.

EN 15048 – Structural joints without preload

Set consisting of a bolt and nut, in grade 8.8, ideal for joints where shear forces predominate. Does not require a controlled tightening system, which facilitates its installation in the field. It is the recommended option for bolted metal structures without preload, such as trusses, light frameworks or secondary supports.

Both structural solutions are CE marked in accordance with the Construction Products Regulation, which guarantees their traceability and compliance with safety requirements for structural applications.

Custom structural fasteners

In addition to our standard catalogue, we offer a custom fastener service to meet the needs of projects with specific requirements. We are able to create 100% customised models, adapting the screws to the dimensions, materials, finishes or mechanical properties of each application.

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