Boccole Tornite

Production of tie rods, U-bolts and anchor bolts

For more than sixty years, Officina Bonacina Srl has been a precision mechanical workshop specializing in third-party work and the production of special linkage and bolts on design. It’s an ideal partner for carpenters, construction companies and specialist retailers.

Located in Calolziocorte in the province of Lecco, the company boasts a lean and well-organized structure that is able to promptly satisfy any customer request, from Italy to abroad.

The supply of materials and treatments is entrusted to a large network of trusted companies, linked to Officina Bonacina by a long relationship of collaboration.

Officina Bonacina‘s ability to supply lots of any volume without distinction, from the smallest to the largest, has always been one of the main strengths of the company, whose family management also guarantees relationships based on transparency and trust.

To date, Officina Bonacina is the point of reference in Lecco and the nearby provinces of Milan, Monza e Brianza, Bergamo and Como in the production of a vast range of solutions: mechanical anchors, bolts, carpentry and mechanical machining with high added value.

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The know-how

The expertise acquired in over half a century of experience is combined with the utmost accuracy in the artisanal production, with the constant precision and quality of the product. All the workforce employed by Officina Bonacina is highly specialized and trained directly at the company.

The materials

The finished product is made using exclusively European-made steel, provided with a 3.1 certificate (according to the EN 10204:2005 standard) which can be supplied on request.


Choosing Officina Bonacina Srl is equivalent to always being guaranteed a high-level production: totally Italian, CE marked, based on the customer’s design and supplied in the desired quantity, including small lots.

The quality

Officina Bonacina guarantees a quick and efficient service for the solution of problematic aspects such as external treatments, logistics and packaging.