The first batch, made by another supplier, never reached site. The bolts had been quenched and tempered horizontally, as is standard practice for short fasteners. However, at this length, several shanks bent beyond the straightness tolerance specified on the drawing.

The customer was left with an unusable batch and an order that had to start again, which was already running late.

A long bolt needs a production cycle designed for its length.

EFS – European Fasteners Solutions took over the order and reorganised the entire production cycle. The 45×29 mm square head is hot forged. Quenching and tempering is carried out with the bolts standing vertically, to limit distortion of the shank. The shank below the head is turned to meet the tight tolerances of its seat, and the 115 mm thread is rolled.

Each stage was entrusted to a specialist Italian workshop, using raw material of European origin, and checked before the next one was authorised.

Why the customer turned to EFS

The original problem had nothing to do with a workshop’s ability to carry out a single operation. What was missing was someone looking at the bolt as a whole and anticipating how its length would affect heat treatment.

That is the role EFS plays as main contractor. It knows which workshops can handle each stage on non-standard components, how to sequence them, and how to manage inspections from one step to the next. For the customer, this means a single point of contact responsible for the whole supply chain. If something does not add up, there is no need to mediate between forger, heat treater and turner: EFS takes care of it.

On supplies like this, much of the work lies in foreseeing where the cycle might go wrong, before it happens.

Read the full story of EFS on Fasten.it and the long bolt in Let’s Fasten.it  To find out more about each operation, read Custom square head bolt: why forging, machining and thread rolling are combined.

L'articolo EFS on Fasten.it: how an order for a 560 mm long bolt was put back on track proviene da EFS Srl European Fasteners Solutions.

As Mattia Cesana, Managing Director of EFS, pointed out, certifications are always a milestone, but also a driver for improvement. Infact, every renewal means questioning procedures, controls and documentation again — confirming them is not enough.

The qualification process directly involved the EFS quality team throughout every stage of the audit, from document verification to process checks.

For EFS customers, the renewal translates into continuity on three concrete fronts:

• consistent, verifiable processes throughout the supply project
• documented traceability of materials and controls
• clear accountability across the supply chain.

The value of TÜV ISO 9001:2015 certification for EFS

The certification carries particular weight for buyers in the DACH market. In Germany, Austria and Switzerland, TÜV certification is far from a minor detail. It is often one of the first criteria a technical procurement office checks when qualifying a supplier, before even looking at the specifics of a given order.

For customers working with this region — Italian, German, or from other markets with projects destined for Germany — the renewal confirms a requirement that carries real weight in local supply decisions.

Changing or renewing the certification body does not alter the substance of the quality system already in place at EFS: it confirms its robustness under a new, independent external review, carried out by TÜV Italia, part of the TÜV SÜD group.

Download the updated EFS ISO 9001:2015 certificate.

L'articolo TÜV Certified Fasteners Supplier ISO 9001:2015: EFS Renews Certification Until 2029 proviene da EFS Srl European Fasteners Solutions.

During the break, you can continue exploring the new EFS website, which has been expanded with a wide range of content dedicated to special fasteners, custom-made components, materials, machining processes and quality controls. The EFS website is now also available in German, providing customers and buyers across the DACH region with direct access to our technical content.

Here are a few sections to start with:

• discover the different types of special screws and bolts available according to customer drawings or international standards;
• learn more about special fasteners and EFS services, from the selection of suitable production processes to machining, treatments, testing and certification;
• explore our application sectors and latest case studies, featuring photographs and technical details of components supplied for different industrial applications.

You can also subscribe to our LinkedIn newsletter, The Perfect Fix, where we regularly publish new projects, photographs of completed components and technical insights into special fasteners.

Enquiries can also be sent during the closure period to info@efsfasteners.com, together with drawings, technical specifications and quantities. They will be reviewed and processed when we return on 24 August.

The EFS team wishes you a pleasant summer break.

L'articolo EFS summer closure from 10 to 21 August 2026 proviene da EFS Srl European Fasteners Solutions.

The aim is not simply to present what EFS can supply, but to make it easier to understand which solutions can be managed, which processes are involved and what expertise is required.

From product categories to detailed technical information

One of the main developments is the expansion of the product area. General product categories are now complemented by pages dedicated to specific types of fasteners.

The special screws and bolts section, for example, provides dedicated information on drawn fasteners, hexagon head bolts, socket head screws, Torx screws, flange bolts, hammer head bolts and bi-hexagonal fasteners. Individual pages explore their characteristics, industrial applications, materials and relevant standards, together with FAQs addressing recurring technical questions.

The same approach has been applied to services. The mechanical reworking section provides more detailed information on the machining operations that can be carried out on fasteners, including turning, grinding, drilling, milling and thread reworking.
This level of detail is particularly relevant for special fasteners, where a requirement rarely comes down to diameter, length and material alone. Non-standard geometries, tolerances, surface treatments, inspections and subsequent machining operations can determine the entire supply process.

New case studies: from specification to supply

The new case studies have a specific purpose: to show through actual supplies how different technical requirements translate into specific manufacturing processes, machining operations and inspections.

This is also where EFS’s role in coordinating the complete supply project becomes particularly clear. Depending on the project, EFS analyses the specifications, selects suitable manufacturers and processes, coordinates production, any subsequent machining and treatments, and verifies inspections, certifications and traceability.

EFS website therefore also becomes a collection of real industrial applications, helping customers understand not only what can be supplied, but how a special fastener project is managed when it involves different materials, technologies and manufacturing stages.

EFS website now in Italian, English and German

The expansion of the website also reflects the international dimension of EFS. Content is available in Italian, English and German, giving international customers and buyers direct access to information on products, materials, services, industrial sectors and case studies.

The English version provides a reference point for the different international markets in which EFS operates, while the German version addresses a more specific requirement. The DACH region is already an important market for EFS, and providing technical content in German enables buyers in Germany, Austria and Switzerland to explore products and capabilities using terminology suited to their industrial environment.
The German version is not intended exclusively for companies based in the DACH region. It can also support Italian and international customers working on projects for the German market and looking for a supply partner familiar with its requirements and business practices.

This presence is supported by more than localised digital content. EFS has German-speaking sales professionals who can directly manage enquiries, technical specifications and communications with German-speaking buyers and other project stakeholders.
The development of the website therefore follows the development of EFS itself: more technical content to support the evaluation of complex supplies and more tools to communicate directly with international markets.

L'articolo The EFS website grows: more technical content in three languages proviene da EFS Srl European Fasteners Solutions.

For companies sourcing special fasteners, certification is not a formality. It is a practical evaluation tool used by technical buyers and quality departments to assess supplier reliability. In German-speaking countries especially, TÜV certification is widely recognised and often plays a decisive role in supplier qualification.

As a TÜV certified fasteners supplier ISO 9001:2015, EFS applies a structured approach to every project:

• selection of qualified European manufacturers based on application requirements
• full control of processes across the supply chain
• complete material traceability
• compliant documentation (EN 10204 3.1 / 3.2 certificates)

This operating model is particularly relevant in sectors such as machinery, energy, railway and industrial applications, where consistency and process reliability are critical, as well as in oil & gas projects with stringent technical specifications.

The change of certification authority does not alter the substance of our quality management system. It strengthens its recognition in international markets and aligns EFS with the expectations of buyers who require structured and verifiable supply partners.

In this context, quality is not a statement. It is a working condition: reliable deliveries, defined responsibilities and consistency in managing complex fastener supply projects.

Download the updated EFS ISO 9001:2015 certificate.

L'articolo TÜV certified fasteners supplier ISO 9001:2015: EFS strengthens quality for European markets proviene da EFS Srl European Fasteners Solutions.

L'articolo Special fasteners with short lead times: when three days make a difference in production proviene da EFS Srl European Fasteners Solutions.

The initiative is designed to foster new collaborations between international buyers and Italian companies operating in mechanical subcontracting, through a structured platform of targeted meetings that connects supply and demand at an international level.

one-to-one meetings

EFS will attend the meetings presenting its experience in the supply of special fasteners for industrial applications, a sector where component reliability and material quality are essential requirements.

InBuyer Mechanical Subcontracting 2026: B2B meetings between international buyers and Italian suppliers

InBuyer Mechanical Subcontracting is a B2B matchmaking format designed to support the internationalization of Italian companies, connecting mechanical subcontracting suppliers with buyers from different markets.

Meetings are organized based on the interests and sourcing needs expressed by the buyers, creating concrete opportunities for networking and business development.

For EFS, participating in this initiative represents an important opportunity to present its expertise to new international partners and further strengthen its presence in global markets.

The value of EFS: a network of Italian manufacturers for special fasteners

In recent years, EFS has developed an increasingly strong presence in international markets. A significant share of the company’s turnover comes from exports, with customers operating across several countries and industrial sectors.

One of the company’s distinctive strengths is also its international mindset. The EFS team speaks 8 languages, enabling smooth communication and efficient collaboration with partners from different markets and cultural contexts.

EFS’s operating model is based on a qualified network of selected Italian manufacturers, allowing the company to identify the most suitable production partner depending on the specific requirements of each project. This approach ensures reliable and tailored solutions for customers while also promoting the excellence of Italian manufacturing in the field of special fasteners.

Through initiatives such as InBuyer, EFS continues to develop international business relationships and promote the quality of Italian manufacturing worldwide.

Explore the meeting.

L'articolo EFS participates in InBuyer Mechanical Subcontracting 2026 proviene da EFS Srl European Fasteners Solutions.

The article, titled “Duplex vs Super Duplex Fasteners: Selection Criteria Based on Real Applications”, is based on EFS’s direct, hands-on experience with real supplies developed for high-performance industrial environments. Rather than offering a purely theoretical comparison, the contribution shares practical selection criteria derived from field experience, in operating conditions characterized by high pressures, corrosive environments, continuous duty cycles and stringent technical specifications.

The article published on Expo Valve highlights how the choice of material is not driven by economic considerations, but by performance requirements, long-term durability and plant safety. Duplex stainless steels, thanks to their austenitic–ferritic microstructure, are presented as a proven solution for many industrial applications, offering a balanced combination of mechanical strength and corrosion resistance, particularly in chloride-containing environments.

Super Duplex stainless steels represent the natural evolution of this material family. Their higher alloy content—especially chromium, molybdenum and nitrogen—allows them to achieve higher mechanical strength and superior resistance to localized corrosion, making them particularly suitable for high-pressure valves and critical components where additional safety margins and consistent performance over time are required.

The EFS article on Expo Valve also draws attention to increasingly crucial aspects of Super Duplex and Duplex fasteners, such as marking, traceability and certification. These elements are now essential to ensure full supply chain control and compliance in critical applications

Read the full technical comparison Duplex vs Super Duplex on EFS blog

L'articolo EFS on Expo Valve magazine: Duplex vs Super Duplex fasteners proviene da EFS Srl European Fasteners Solutions.

L'articolo DIN 931 Bolt 10.9 with iridescent zinc coating proviene da EFS Srl European Fasteners Solutions.

L'articolo EFS Inconel 718 Case Study on Fasten.it proviene da EFS Srl European Fasteners Solutions.