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Tornilleria Amezua manufactures fasteners to various sectors such as agricultural machinery, construction, forestry machinery, marine engineering, etc.

Our production process gives us the dynamism needed to meet the manufacturer's own designs or giving innovative proposals to improve our product by providing added value itself to meet the demands of our customers. Allowing hot stamp build the right solutions for their parts. 

 Bulon para agricola
The products offered by Tornilleria Amezua for OEMs are all kinds of special screws and bolts in grades 8.8, 10.9, 12.9 in different materials and stainless steels: 
  • Steel: F1111, F1114, F125, F127
  • Hexagonal screws: M16 – M72
  • Studs: M16 – M72
  • Bolts: Φ16 – Φ72
  • Galvanized bolts
  • Black oxide bolts
  • Dichromate bolts
  • Shafts
  • Barbed
  • U-bolts


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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