"You can do anything if you have enthusiasm"

H. Ford

Since the beginning...

Bulloneria Usorini, established in 1966, is one of the most qualified Italian bolt manufacturing companies,specialized in the production of special fastening systems on specification or drawing.
Research capabilities and more than 50 years of experience allow us to build strong development partnershipswith our customers in order to design reliable solutions to meet automotive product standards as well as otherdifferent mechanical assemblies.

Productive process

CAD Process Design

Tooling Internal Design and Manufacturing

Steel Wire Pickling and Polymer Lubrification

Cold Stamping

Thread Rolling


Heat Treatments

Thread Locking and Sealants Application


Quality Controls with QA Quality Certificate




Bulloneria Usorini is a IATF 16949 and ISO 9001 certified company.

IATF 16949:2016
ISO 9001:2015