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Since 1951, Tornilleria Amezua manufactures Industrial fasteners forged by hot stamp based on the demand of various industries.

We manufacture solutions according to highest standards of quality obtain high performance screws and bolts. This becomes us leader in the manufacture of industrial screws and bolts worldwide.

Our product is present in the market heavy fasteners aimed at different sectors, such as wind power energy, marine, rail, petrochemical, heavy industrial, agricultural, ...

Tornilleria hexagonal

In recent years we have been conducting an ongoing investment program, with the development of its own technology innovations, ensuring that all our products thoroughly meet the quality level requested.

We focus on manufacturing industrial fasteners, bolts, screws, studs and other metal fasteners in steel grades 5.6, 8.8, 10.9, 12.9 and stainless steel, with a diameter between 16 and 72mm metric, in any length up to 800mm. 

From Tornilleria Amezua, we adapt to your needs offering prompt service thanks to our large stock of screws DIN 931 and DIN 933.


Wind Power


Bolts to


HV fasteners to

heavy industry

 B7 fasteners to


Tornilleria sector eolico
 Tornillos pernos  
Tornilleria estructura hv Tornilleria calidad 12.9

Manufacturing of fasteners to leader companies of Wind Power industry according to U.S.  and European standards.

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Since 1951 we manufacture bolts under drawing to agriculture, integrating it selves in the innovation process of the company.

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Fasteners for high performance and resistance fasteners that protect both the safety of persons such as structural.

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Manufacture of bolts for petrochemical facilities under strict quality control and with European and U.S. standards.

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