Wulkan

What Wulkan does

Wulkan is a Swedish cold-forging manufacturer operating as part of the family-owned Mattssons Group, headquartered in Anderstorp, Sweden. The company has been producing cold-forged fasteners and specialized parts since 1933, with current operations covering cold-forging of screws, bolts, rivets, pins, shafts, bushings, and special parts at a capacity of 3 million items per day. It also operates an in-house hardening plant (Nordic region's largest belt furnace at 1,200 kg/hour, acquired from Bodycote in 2010) and surface treatment facilities, including the proprietary MS4-20 zinc-nickel coating that delivers C4-class corrosion resistance. Wulkan holds IATF 16949, ISO 9001, and ISO 14001 certifications, enabling direct supply into automotive OEM supply chains and positioning it as one of few Swedish cold-forgers with that qualification.

Wulkan's proprietary and licensed technology stack includes the MS4-20 surface treatment, the Kam-Mera camera-based VMI system (proven since 2006) and Point & Refill scanner-based replenishment, plus the exclusive Scandinavian license for Nylok's TUF-LOK nylon-based thread locking technology. It runs one of Europe's most complete fastener testing laboratories, with a self-sufficient tool department since 2014 and a product catalogue of over 180,000 articles, which Mattssons claims is the world's largest CAD fastener assortment via its SolidComponents partnership. The company sells primarily through B2B enterprise field sales organized by Swedish region (Småland/Blekinge/Skåne, Svealand/Norrland, Export) and the WebTrade B2B e-commerce portal with three service tiers.

Wulkan's revenue model combines contract manufacturing services (custom cold-forged parts per drawing or specification), subcontract surface treatment and hardening services, plus product sales routed through Mattssons' distribution channels. Pricing is volume-based unit pricing with a minimum order of 500 SEK, broken-packaging surcharges, and consolidation-driven logistics services (Kam-Mera VMI, Point & Refill, 3PL integrated supply) marketed under the "15/85 rule" — the proposition that only 15% of total fastener cost is the product itself, with the remaining 85% addressable through logistics optimization. Customer segments span industrial assembly professionals, automotive (via IATF 16949), construction, and specialized industrial applications including aerospace (Nylok products cited as used by NASA). Distribution extends beyond Scandinavia to Iberian markets (Portugal office since 1998) and China (Hangzhou subsidiary).

Name

Wulkan

Legal name

Wulkan

Website

https://wulkan.se

Company type

Private

Founded year

1931

Operating status

Operating

Headcount range

11–50 employees

Short description

Wulkan is a Swedish cold-forging manufacturer in Anderstorp, producing 3 million fasteners daily and serving industrial assembly, automotive, and construction customers through proprietary surface treatments, VMI logistics, and an exclusive Nylok thread-locking license.

Ownership category

akta.pro rank

Product category

Cold-Forged Industrial Fasteners

NAICS

Bolt, Nut, Screw, Rivet, and Washer Manufacturing (332722), Fabricated Metal Product Manufacturing (332)

SIC

Bolts, Nuts, Screws, Rivets & Washers (3452), Metal Forgings & Stampings (3460), Screw Machine Products (3451)

akta.pro primary industry

Metal Forming & Fabrication Machines (Presses, Bending, Shearing, Stamping) (IMAHADAC)

Keywords

• Cold-forged fasteners
• Contract manufacturing services
• Industrial surface treatment
• Vendor managed inventory
• Thread locking solutions

Headquarters

HQ city

Anderstorp

HQ country

Sweden

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Fastener Product Sales: Sale of standard and specialized fasteners from inventory of 180,000+ articles. Includes metric threading, unified thread standard, stainless steel, brass/copper/aluminum/plastic fasteners. Revenue from product sales with pricing based on quantity, surface treatment, and material specifications.
2. Contract Manufacturing Services: Cold-forging manufacturing services for customer-specific parts according to drawing or specification. In-house capabilities include: tool department, construction/design, threading, finishing, washing, tumbling, deburring, polishing, hardening, and surface treatment. Production of custom prototypes and small series.
3. Surface Treatment Services: Contract surface treatment services including: washing, tumbling, deburring, polishing, waxing, glidlackering, electro-galvanizing, nickel plating, phosphating, and proprietary MS4-20 treatment. Services for subcontracted goods and in-house produced items.
4. Hardening Services: Subcontracted hardening operations at the hardening plant with largest belt furnace capacity in Nordic region (1200 kg per hour). Services include carbonitriding, case hardening, quenching and tempering for items up to 300 grams.
5. Logistics Services: VMI solutions including Kam-Mera (camera monitoring) and Point & Refill (scanner-based), 3PL integrated supply, restocking, and logistics optimization consulting. Revenue from service fees and product markups through consolidated logistics.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels5 records

Core offering

Wulkan manufactures cold-forged fasteners including screws, bolts, rivets, pins, shafts, bushings, and specialized parts using multi-station cold-forging (kallstukning) technology with a daily production capacity of 3 million items. The company also provides in-house contract services covering surface treatment (washing, tumbling, deburring, polishing, MS4-20 proprietary coating), hardening (largest belt furnace in Nordic region at 1,200 kg/hour), thread locking (TUF-LOK/Nylok licensed), and tool manufacturing. Standard products from an inventory of 180,000+ articles and custom-made-to-drawing fasteners are supplied alongside automated Vendor Managed Inventory solutions (Kam-Mera, Peka & Fyll På) for industrial assembly customers.

Product overview

Wulkan is a cold-forging and contract manufacturing company operating as part of the Mattssons Group. The product portfolio centers on cold-forged fasteners (screws, bolts, rivets, pins) as the core manufacturing capability, supplemented by in-house post-processing including surface treatments (MS4-20 proprietary coating), hardening, thread locking (TUF-LOK/Nylok), and tool manufacturing. Wulkan also offers Vendor Managed Inventory solutions (Kam-Mera camera-based, Peka & Fyll Pa scanner-based) for automated fastener supply. The company operates in Anderstorp, Sweden, with capacity of 3 million items per day, serving primarily the automotive and industrial sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Wulkan Cold-Forging Manufacturing Cold-forging manufacturing of fasteners including screws, bolts, rivets, pins, shafts, bushings, and special parts according to customer drawings or specifications. Production capacity of 3,000,000 items per day at diameters 2-42mm and lengths up to 180mm.
• Wulkan Standard Fasteners Standard cold-forged fastener catalog including hex screws, allen screws, machine screws, thread-forming screws, rivets in steel, brass, aluminum and copper. Part of an inventory of over 180,000 articles.
• Wulkan Surface Treatment Services Contract surface treatment services including washing, tumbling, deburring, polishing, waxing, glide coating, electro-galvanizing, nickel plating, phosphating, and proprietary MS4-20 treatment. Services for subcontracted goods and in-house produced items. Capacity of 2.5 tons per hour for alkaline washing.
• MS4-20 Proprietary Surface Treatment Proprietary zinc-nickel based surface treatment providing high corrosion resistance similar to C4 corrosion class per EN ISO 12944-2, comparable to hot-dip galvanizing and stainless steel, while maintaining high assembly efficiency. RoHS compliant and hexavalent chromium free.
• TUF-LOK Thread Locking Nylon-based thread locking coating applied to fasteners for friction locking. Covers dimensions M1-M68, reusable, environmentally friendly, provides vibration damping, sound absorption, and sealing against liquids and gases. Licensed from Nylok Corporation (one of 26 licensees worldwide, the only one in Scandinavia).
• Wulkan Hardening Services Subcontracted hardening services including carbonitriding, case hardening, quenching and tempering, with the largest belt furnace capacity in the Nordic region at 1,200 kg per hour. Services for items up to 300 grams.
• Kam-Mera VMI Solution Camera-based Vendor Managed Inventory solution for automated monitoring and reordering of fasteners. Uses proprietary image processing to monitor shelf inventory and generate digital orders based on predefined minimum stock levels. Wireless connectivity via 4G, 5G, and Wi-Fi.
• Peka & Fyll Pa (Point & Refill) Scanner-based VMI solution where users point at article barcodes to generate digital orders for restocking, integrated with WebTrade Portal for full order and inventory control.
• Nylok Scandinavia Thread Locking Services Scandinavian license holder for Nylok products including TUF-LOK, with over 150 patents for coating threaded fasteners. Only one of 26 licensees worldwide, offering thread locking, sealing, and anti-vibration solutions.
• Prototype Manufacturing Rapid prototyping and small series production using CNC machines, lathes, EDM (spark machining), wire burning and milling equipment, supported by in-house design and testing laboratory.
• Tool Department Services Manufacturing, modification, and adjustment of tools for cold-forging, threading, and post-production treatments. Includes tool design, maintenance, tool hardening, with flexible solutions and external tool services.

Quantifiable outcome

• Up to 70% savings on overall fastener costs by optimizing logistics and overhead costs
• +3 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered major, core, flagship and minor.

• ABB and IBMmajorStrategic or Co-development Partner · 1 January 1986Early collaboration (1986) with ABB and IBM for computerized communications and IT systems. This partnership enabled early development of forecasting systems and hand-held terminals for fastener logistics, making Mattssons pioneers in the industry.
• Nylok Scandinavia ABcoreTechnology or IntegrationJoint venture (1999) between Mattssons and Wulkan for Nylok products. Mattssons is one of 26 Nylok licensees worldwide and the only one in Scandinavia. Nylok holds 150+ patents for thread locking and sealing solutions. Products include TUF-LOK, NyTemp, Blue Patch, Nyplas, Nyseal, Nystay, and other locking coatings.
• SolidComponentsflagshipTechnology or IntegrationPartnership providing CAD support for fasteners. According to SolidComponents, Mattssons offers the largest CAD assortment of fasteners in the world. Designers can navigate 180,000+ products and download components for 3D models directly.
• BodycoteminorStrategic or Co-development PartnerAcquired Härdverkstaden hardening factory from Bodycote in 2010 when Bodycote intended to close or sell the business. Acquisition ensured continued subcontracted hardening operations for customers of Mattssons, Wulkan, and former Bodycote operations.

Scale indicators6 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Bufab AB: Swedish fastener distributor and supply chain specialist. Shares Scandinavian home market, industrial assembly customer focus, and the value-added logistics/distribution model that complements Wulkan's manufacturing.
• Sundram Fasteners: Indian cold-forged fastener manufacturer serving global automotive OEMs with high-precision bolts and screws. Comparable on automotive vertical focus, IATF certifications, and high-volume cold-forging scale.
• Fontana Gruppo: Italian fastener manufacturer producing cold-headed screws and bolts for automotive and industrial customers. Comparable on European footprint, automotive certifications, and specialty fastener portfolio.
• Nedschroef: Dutch cold-forging fastener manufacturer serving automotive and industrial markets with similar screw, bolt, and rivet production. Directly comparable on cold-forming technology, automotive certifications (IATF 16949), and customer base overlap.
• Kamax: German cold-formed fastener specialist focused on high-strength bolts and screws for automotive applications. Closely aligned on cold-forging process depth, automotive vertical exposure, and precision tolerance requirements.
• Arnold Umformtechnik: German cold-forming fastener manufacturer with comparable screw and bolt production capabilities. Strong overlap on automotive and industrial customer segments, plus shared heritage in precision cold-forging technology.
• EJOT: German cold-forming specialist producing specialty fasteners for automotive, construction, and industrial applications. Similar specialization depth and proprietary engineering focus make EJOT a strong process-level comparator.

Broad incumbents

• Bossard Group: Swiss-listed fastener solutions provider offering global distribution, kitting, and logistics services alongside fastener manufacturing. Overlaps with Wulkan on industrial assembly customers and the broader fastener+VMI value proposition, but at much larger scale.
• TR Fastenings (Trifast plc): UK-based industrial fastener manufacturer and distributor serving automotive, electronics, and industrial assembly. Comparable in product category and customer verticals, with similar focus on engineered fasteners and VMI services.
• Würth Group: Global market leader in fasteners, tools, and assembly technology serving industrial and automotive customers. Overlaps with Wulkan on product category and customer base but operates at much greater scale with a broader portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/nitfabriken-wulkan-ab

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

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 Wulkan