What Dokka Fasteners does

Dokka Fasteners is a Norwegian manufacturer of high-strength industrial fasteners — hex bolts, stud bolts, HV/SB construction bolts, foundation bolts, threaded rods, and tower flange studs — produced in property classes 8.8 through 12.9 and in dimensions up to M100 diameter and 6 meters length. Founded in 1875 and headquartered in Dokka, Norway, the company operates one of the few fully-automated production lines in the world capable of large-dimension bolt manufacturing at a nameplate capacity of 20,000 tons per year, with in-house heat treatment, hot-dip galvanizing (HDG), and mechanical cleaning, plus 95-98% renewable hydroelectric power. It holds the API 20E BSL-3 monogram (the highest Oil & Gas fastener standard), API Q1, ISO 9001:2015, ISO 14001:2015, and multiple TÜV certifications covering DIN 976-1, EN 14399, EN 15048, and DASt-021.

The company serves three primary verticals — Wind Power (turbine blade connections, tower flange bolts, foundation bolts and kits), Oil & Gas (subsea stack bolts, BOP bolts, riser bolts to API 20E BSL-3), and Heavy Engineering (cranes, mining equipment, slew-ring bolts, power plants) — with end-customers in safety-critical, harsh-environment applications. Its go-to-market is enterprise field sales with Key Account Managers and regional sales contacts covering Norway, Denmark, and Lithuania, combined with technical consultation from the design phase through delivery. Revenue is generated through hardware sales of fasteners plus value-added services — Vendor Managed Inventory (VMI/Kanban) yielding 20-80% inventory savings, Fast Track Production with sub-4-day delivery, Foundation Kit Sets, RFID-enabled Smart Bolts, and surface coating services — all priced on a quote basis tailored to project specifications. Dokka Fasteners is a subsidiary of the Würth Group, a German global industrial conglomerate, and operates under its Code of Compliance and global logistics network.

Name

Dokka Fasteners

Legal name

Dokka Fasteners AS

Website

https://dokkafasteners.com

Company type

Private

Founded year

1875

Operating status

Operating

Headcount range

101–250 employees

Short description

Dokka Fasteners is a Norwegian manufacturer of high-strength industrial bolts, studs, and threaded rods (M12-M100, up to 6 meters) for the Wind Power, Oil & Gas, and Heavy Engineering sectors, operating as a subsidiary of the Würth Group with API 20E BSL-3 certification and 20,000 tons/year automated production capacity.

Ownership category

akta.pro rank

Product category

Industrial Fasteners / High-Strength Bolts Manufacturing

NAICS

Bolt, Nut, Screw, Rivet, and Washer Manufacturing (332722)

SIC

Bolts, Nuts, Screws, Rivets & Washers (3452)

akta.pro primary industry

Fasteners, Anchors & Connectors (Bolts, Weld Studs, Plates) (IMADACAJ)

akta.pro secondary industry

Fasteners & Joining Consumables (Bolts, Rivets, Welding Wire/Rods, Flux) (IMAJAKAI)

Keywords

• Industrial fasteners
• High tensile bolts
• Wind power fasteners
• Oil and gas fasteners
• Structural bolting assemblies

Headquarters

HQ city

Dokka

HQ country

Norway

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Infrastructure, Technology or R&D, Personnel, Marketing or Sales

Revenue model

1. Fastener Product Sales: Dokka generates revenue through the manufacture and sale of industrial fasteners including hex bolts, stud bolts, threaded rods, foundation bolts, and custom-engineered fasteners. Products are sold in property classes 8.8, 10.9, and 12.9, with batch sizes tailored to customer needs.
2. Value-Added Services: Additional revenue streams include Vendor Managed Inventory (VMI) services, kit solutions, fast track production, and surface coating services.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Dokka Fasteners manufactures and sells high-strength industrial fasteners—hex head bolts, stud bolts, threaded rods, foundation bolts, HV and SB construction bolts, and tower flange studs—for Wind Power, Oil & Gas, and Heavy Engineering customers. Products span property classes 8.8, 10.9, and 12.9 with diameters up to M100 and lengths up to 6 meters, produced on a fully-automated production line with annual capacity of 20,000 tons, complemented by value-added services such as Vendor Managed Inventory, Foundation Kits, Fast Track Production, and Surface Coating.

Product overview

Dokka Fasteners is a manufacturer of industrial fasteners serving the Wind Power, Oil & Gas, and Heavy Engineering sectors. The product portfolio centers on high-strength bolts and studs — including Hex Head Bolts (8.8–12.9), Stud Bolts (8.8–12.9), HV Bolts (10.9), SB Construction Bolts (8.8–10.9), Foundation Bolts (8.8–10.9), Threaded Rods (8.8–12.9), and Tower Flange Studs (10.9) — all produced at fully-automated European facilities with capacity of up to 20,000 tons per year. Industry-specific ranges include API 20E BSL-3-certified Oil & Gas fasteners (including heavy hex bolts, double-end stud bolts, and riser/BOP bolts per ASTM) and Heavy Engineering fasteners (with slew-ring bolts and ASTM B7/L7 grades). The product line is complemented by value-adding services — Intelligent/Smart Bolts with integrated RFID chips for data tracking, Foundation Kit Sets (complete with anchor cages for wind turbines), Vendor Managed Inventory (VMI/Kanban with RFID, CPS, and vending machine options yielding 20–80% savings), Fast Track Production (sub-4-day delivery of stocked solutions 24/7), and Surface Coating Services (in-house HDG plus subcontracted Zinc Flake, Sheradizing, Phosphate, Zinc Plate, PTFE, and Xylan). Pre-lubricated fasteners are also offered across the range. The company operates under the Würth Group and is part of its global logistics network.

Differentiator

Problem solved

Functional benefit

Products and services

• Hex Head Bolts Standard and custom hex head bolts in property classes 8.8, 10.9, and 12.9, covering size ranges from M12 to M100, used across Wind Power, Oil & Gas, and Heavy Engineering applications.
• Stud Bolts Stud bolts in property classes 8.8, 10.9, and 12.9, covering size ranges from M24 to M100 for wind power and heavy engineering applications, and up to 4 inches for Oil & Gas.
• HV Bolts (High-Strength Bolting Assemblies) High-strength HV bolting assemblies per EN 14399 standards, property class 10.9, certified with Declaration of Performance DF 001/EN 14399-4 for structural preloading applications.
• SB Construction Bolts SB construction bolts per EN ISO 4014 standard, available in property classes 8.8 and 10.9, with Declaration of Performance DF 004/EN ISO 4014.
• Foundation Bolts Foundation bolts and kits for wind turbine installations, available in property classes 8.8 and 10.9, diameters up to M100 and lengths up to 6 meters, including anchor rings, bolts, and installation c-parts delivered as complete kits.
• Threaded Rods Fully-threaded rods in property classes 8.8, 10.9, and 12.9, certified to TÜV DIN 976-1:2016-09 for metric threads M12-M80, with sizes up to M100.
• Tower Flange Studs Tower flange studs in property class 10.9, covering sizes M36-M100, designed for securing tower base connections in wind turbine installations.
• Oil & Gas API 20E BSL-3 Fasteners Purpose-built fasteners for the Oil & Gas sector produced to API 20E BSL-3 standard, including fully machined bolts/nuts/washers (3/4\"-6\"), heavy hex bolts (3/4\"-4\"), double-end stud bolts (3/4\"-4\"), riser and BOP bolts (1/2\"-6\"), and riser bolt inserts (1-1/2\"-5\"), with property classes per ASTM standards.
• Heavy Engineering Fasteners Fasteners for cranes, heavy machinery, mining vehicles, conveyors, and power plants; hex bolts M12-M100, stud bolts M20-M100, threaded rods M20-M100, and slew-ring bolts per customer specifications with 100% MPI third-party testing after hardening; property classes 8.8, 10.9, 12.9, and ASTM B7/L7.
• Foundation Kit Sets Complete foundation kits for large wind turbines including anchor cage solutions with anchor rings, bolts, and c-parts, produced to order, packed at the Brande warehouse, and delivered globally to project timeframes.
• Vendor Managed Inventory (VMI) / Kanban VMI system providing just-in-time inventory management using barcode scanning of empty bins, RFID, CPS (C-parts solution), and vending machine solutions with a CPS online management system, enabling 20-80% inventory cost savings and reduced stockouts.
• Fast Track Production Fast-track production service enabling delivery of large diameter bolts in tight timeframes, including small production runs, maintaining fully stocked inventory of heat-treated blank bolts for 24/7 delivery of common solutions within less than 4 days, with in-house HDG and mechanical cleaning with no hydrogen embrittlement.
• Surface Coating Services Surface coating services including in-house HDG (Hot-Dip Galvanizing), with additional options through trusted subcontractors: Zinc Flake, Sheradizing, Phosphate, Zinc Plate, PTFE; for Oil & Gas customers: Plain, Phosphate, and Xylan coatings available.

Quantifiable outcome

• VMI can reduce inventory costs by 20-80%
• +2 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Würth Groupparent companyOthersDokka Fasteners is part of the Würth Group, a global market leader in assembly and fastening materials. The company operates under the Würth Group's Code of Compliance and values, with integrity and compliant behavior as foundations of business operations.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Infasco: Canadian manufacturer of large-diameter bolts, studs, and nuts for heavy industry, mining, wind energy, and infrastructure. Similar niche focus on large fasteners with industry-specific certifications and a comparable enterprise sales motion.
• BUMAX: Swedish manufacturer of high-grade stainless steel and special alloy fasteners for demanding applications including marine, oil & gas, and heavy engineering. Comparable Nordic peer with overlapping certifications and customer base.
• Portland Bolt: US-based manufacturer specializing in large-diameter structural and anchor bolts for construction, infrastructure, and heavy industry. Comparable in product scope (large bolts, custom manufacturing) and target customer profile.
• Fontana Gruppo: Italian manufacturer of large bolts, studs, and special fasteners for energy, infrastructure, and heavy industry markets. Comparable in large-diameter specialty fastener production and European industrial customer base.
• Lejeune Bolt Company: US manufacturer of large structural bolts, anchor bolts, and specialty fasteners for wind, infrastructure, and heavy construction. Direct comparable in large-diameter bolt production and project-based customer relationships.
• Cooper & Turner: UK-based manufacturer of high-strength structural bolts and stud bolts for wind energy, oil & gas, bridges, and infrastructure. Closest comparable to Dokka in large-diameter, certified fasteners serving the same end markets across Europe.

Broad incumbents

• Bossard Group: Swiss-listed global specialist in industrial fastening and assembly technology with broad product portfolio and Smart Factory Logistics services (VMI/kanban) similar to Dokka's offering. Larger, broader competitor serving similar end markets with deeper digital/logistics capabilities.
• Nucor Fastener: US division of Nucor Corporation, one of North America's largest producers of carbon and alloy steel bolts and fasteners. Much larger mass-market competitor serving overlapping industrial end markets at scale.
• TR Fastenings: UK-based broad-line industrial fastener manufacturer and distributor serving automotive, construction, and industrial markets. Overlaps with Dokka in industrial fasteners but with much broader product portfolio and distribution focus.

Others

• voestalpine: Austrian steel and technology group producing special steel fastener products for automotive, energy, and railway applications. Larger incumbent with vertically integrated steel production and significant scale advantage.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/DokkaFastenersGroup
• LinkedInlinkedin.com/company/dokka-fasteners
• Instagraminstagram.com/dokkafasteners

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Dokka Fasteners