BSA: where technology, expertise, and attention to detail come together to create solutions that make a difference.


At BSA know-how and vision combine to deliver high-performance custom solutions.

A team working across production, warehouse operations, laboratories, and technical offices collaborates in synergy to manufacture special bolts and custom-engineered components for the most demanding industries: petrochemical, pharmaceutical, marine, nuclear, and major infrastructure sectors.

We operate in compliance with the main international standards, ensuring consistently high levels of quality.

Every stage is designed to guarantee strength, reliability, and long-term durability.

BSA Bulloneria speciale

Material Selection

  • Carbon and alloy steels
  • Stainless steels
  • Duplex and super duplex steels
  • Nickel alloys
  • Incoloy
  • Inconel
  • Monel
  • Hastelloy
  • Titanium
  • Zirconium
  • Tantalum
  • Palladium

Anti-Corrosion Surface Treatments

  • Electrogalvanizing
  • Hot-dip Galvanizing
  • Cadmium Plating
  • Nickel Plating
  • Zinc-Nickel Treatment
  • Geomet (Dacromet) Coating
  • Chrome Plating
  • Silver Plating
  • Molykote Coating
  • PTFE Coating with fluorocarbon resins
  • Phosphating

Our Products


We manufactures up to 9,000 tons per year in sizes from 3/8’’ to 12’’ and M10 to M300, without length restrictions. Contact us for more information.