Experience in the
industrial sector




24/7 purchase management on our online store


At Proton Fasteners S.L., we are leading distributors of specialised fasteners.

Our dedication extends to multiple industrial sectors, where we specialise in offering high strength solutions and exclusive products.

With extensive experience accumulated over the years, working closely with various sectors, and with a team of highly qualified and experienced professionals, we have established ourselves as competent suppliers in the field of fasteners.

Our fundamental commitment is to provide a personalised service to each customer. Based on your working methodology and the sector you work in, we get involved in your projects from the very beginning to ensure optimum results. At Proton Fasteners, we understand that each client is unique, and we tailor our services to meet your specific needs.

Trust us to find the high quality fastener solutions you need.

Contact us today and find out how we can drive your success in the industry!

We have been beneficiaries of the European Regional Development Fund whose objective is to promote research, technological development and innovation and thanks to which we have been able to implement the project Implementation of the quality management system according to the ISO 9001:2015 standard and Certification of the quality management system according to ISO 9001:2015 standard. This action took place during the year 2019-2020. It was supported by the InnoCámaras program of the Barcelona Chamber of Commerce. A way to build Europe.
Information du programme.

Proton - Union Europea

Products manufactured by factories approved by our quality department

Products manufactured by factories approved by our quality department.

We only supply products made by certified companies that meet the highest quality standards.

Our main product is

DIN 933 - 931 - 912 bolts in 12.9 quality

EN 14399 -4 HV - EN 15048 8.8 

DIN 934 - DIN 125 - DIN 9021

But our ability to supply our products in all sectors allows us to have a very wide range of products.

We work with DIN-ISO norms.

Some of our references

DIN 933 - Proton Fasteners
DIN 933
DIN 95
DIN 934
DIN 6885 A
DIN 9021
DIN 988
Planos Web PROTON SL

The best answer to any request

At Proton Fasteners, we recognise the uniqueness of each client and project. We work on a customised basis to meet your specific needs.

Our technical team is prepared to analyse your drawings and specifications, enabling us to manufacture parts exactly as you require them. We carry out a meticulous study to guarantee a precise and careful production process.

We work in collaboration with certified factories that follow strict quality protocols, backed by the corresponding quality certificates.

If you have any technical questions, please do not hesitate to contact our sales department. We are here to help you in every step of your project.

Satisfied customers
Casos de Éxito



We deeply value the strength of collaboration and the synergy that is created when organisations committed to excellence come together for the same purpose. Each of our people brings a unique set of skills and experience that enriches our vision and drives us forward.


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