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High quality fasteners
built to last

We build strong connections based on high quality standards

Our fasteners need to perform day in, day out in the harshest climates possible. We can produce bolts and studs to meet ISO, DIN, and IEC standards for wind turbines, API 20E BSL-3 for the Oil & Gas sector, and many other industry standards.

Because our main series production is fully-automated, you are guaranteed a consistently high quality result and strong cost competitiveness. 

Furthermore, we can make small batches tailored to your exact needs, and work in the tightest timeframes. 

And as all our components go through rigorous testing, our experts can help you set new standards for your fastener performance.

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Proven quality

With a track record going back over a century, we are trusted around the globe to manufacture extremely durable fasteners. We thoroughly test our production to ensure only the best quality bolts and studs are shipped to our customers.

02

Production powered by green energy

At Dokka, we’re meeting present and future demands with our state-of-the-art facilities. Our fully-automated production line is one of the few on the market to manufacture large-dimension bolts that adhere to the highest industry standards. Not only that, 95% of our electricity is sustainably sourced.

03

Services tailored to deliver

Every project is different, and that is why we have crafted a range of services to make sure we meet our clients' every need. We offer VMI/kanban, smart bolts, kit solutions, and fast track production, and various surface-coating options.

04

Quality assured to the highest industry standard

We can manufacture to the highest industry standards depending on your project needs. Wind turbine blade fasteners can be made according to ISO, DIN, and IEC standards, and Oil & Gas fasteners can be produced to comply with API 20E BSL-3 and other industry standards.

05

Customized solutions to fit your project specifications

Our experienced technical team is always available to check your plans and specs, and give advice. Then we can adjust everything, from to the choice of alloys, to the processing method, to the hardening process and coating. We make sure your fastener fits precisely with the conditions it will be working in.

06

Strong connections

Like our fasteners, we like our client and partner relationships to be long lasting and strongly connected. We will be on hand to help you at every step of the process, from design to delivery and beyond.

Certificates

API 20E BSL-3

Certificate of Authority to use the Official API Monogram

Grant by The American Petroleum Institute

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Q1-3173

Certificate of Registration

Certification of quality management system by The American Petroleum Institute

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ISO 9001:2015

Management System Certifikate

Development, manufacturing, stock-holding, sales and delivery of fasteners.

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ISO 14001:2015

Management System Certificate

Development, manufacturing, stock-holding, sales and delivery of fasteners.

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OO45-CPR-0805

Certificate of Conformity of the Factory Production Control

Factory production control is assessed to be in conformity with the applicable requirements.

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07/203/1326/WP/0805/22

Certificate TÜV NORD Systems GmbH & Co. KG

Verified and recognized as material manufacturer according to AD 2000-Merkblatt WO

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07/202/1326/WZ/0805/22

Certificate TÜV NORD

Quality-Assurance System for material manufacturer according to Pressure Equipment Directive 2014/68/EU

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07/201/1326/ÜZ/0805/19/02

ÜBEREINSTIMMUNGSZERTIFIKAT

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07/201/1326/ÜZ/0805/19/01

ÜBEREINSTIMMUNGSZERTIFIKAT

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Sustainable
at every step

Embodied carbon has become a critical criteria for all engineering projects, as investors and clients focus ever more intensively on improving sustainability. 

As a trusted and responsible partner, we are committed to doing all we can to reduce the carbon emissions of our production processes. This includes using almost 100% renewable electricity, maximizing production efficiency through automation, and minimizing waste. 

We also work closely with our sourcing partners to ensure transparency on the raw materials and components used in our production. 

Renewable Energy

Dokka’s manufacturing facility in Norway is connected to one of the world’s most sustainable energy grids. This makes it the perfect place for our electrically powered production. The result? A massive 95% of our energy consumption is sustainably sourced.

Environmental footprint

At our core, we are all about making a positive impact. We strive to minimize waste, conserve resources, and cut down on energy consumption. That’s why we have implemented recycling and waste reduction programs in our facility, and we continuously evaluate and improve our energy efficiency.

Responsible Sourcing

We only work with trusted suppliers who share our values. We encourage them to adopt sustainable practices and offer transparency in terms of their environmental impact.

Corporate social responsibility

We engage in a range of initiatives to support the societies we work in, and are continuously looking for ways to contribute to building a more sustainable world.

Expertise across industries

Our experienced technical team has in-depth knowledge of specific industry needs, covering Wind Power, Oil & Gas, and Heavy Engineering. We can manufacture standard or custom-made fasteners to meet your exact needs, and tailor production speed to work within your timeframe.

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Heavy Engineering

 02

Oil & Gas

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Wind power