Tension Control Bolts

Name

Tension Control Bolts

Legal name

Tension Control Bolts Ltd

Website

https://tcbolts.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

51–100 employees

Ownership category

akta.pro rank

Product category

Industrial Fasteners and Structural Bolting

NAICS

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

SIC

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

akta.pro primary industry

Plumbing Supports, Hangers & Seismic Bracing (IMADALAH)

Keywords

• Structural bolting assemblies
• Tension control bolts
• Shear wrenches
• Anti-corrosion coatings
• Preloaded fasteners

Headquarters

HQ city

Wrexham

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. TCB Hardware Sales: Sale of tension control bolts and bolting assemblies including Standard, Countersunk, Stud, Weathering, and TuBolt variants. Products manufactured to EN 14399 standards for structural steel requirements. Revenue from large-scale infrastructure projects globally.
2. Shear Wrench Sales, Hire and Repair: Full range of shear wrench services including sales of cordless and electric models (CSM160, GM160, GM220, GH240, GV300, GX360, GMC220, GHC240, GVC300, GSULR300), hire services, and repair maintenance.
3. Training and CPD Seminars: Installation training services and Continuing Professional Development seminars for contractors and engineers on proper TCB installation techniques.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Tension Control Bolts Ltd designs, manufactures, and distributes high-strength tension control bolting assemblies (Standard, Countersunk, Stud, Weathering, and TuBolt variants) to EN 14399 standards for structural steel applications. The offering is complemented by electric and cordless shear wrenches (sales, hire, and repair) for installation and the company's proprietary Greenkote thermal diffusion anti-corrosion coating produced in-house.

Product overview

Tension Control Bolts Ltd offers a comprehensive portfolio of hardware products centered on tension control bolting assemblies for structural steel applications. The core product line includes Standard TCBs, Countersunk TCBs, Stud TCBs, Weathering Steel TCBs, and Tubolt bolts—all manufactured to EN 14399 to meet structural steel requirements. These bolting assemblies are complemented by a full range of shear wrenches (electric and cordless models including GM, GH, GV, GX, GMC, GHC, GVC, GSULR, and CSM series) for installation. The company also operates its own proprietary Greenkote thermal diffusion metal coating plant providing anti-corrosion protection. TCBs are installed using shear wrenches which do not require calibration, ensuring consistent preload regardless of tool or operator. The product portfolio serves diverse sectors including bridges, rail, construction, power, transportation, wind energy, marine, and tunneling.

Differentiator

Problem solved

Functional benefit

Brands

• Greenkote: Eco-friendly thermal diffusion metal coating for fasteners, an environmentally friendly anti-corrosion protection comparable to galvanising but harder wearing and readily accepts all paint systems.

Products and services

• Standard TCB (Tension Control Bolt)
• Countersunk TCB Countersunk head tension control bolts designed for flush-fitting applications where a smooth surface finish is required.
• Stud TCB Tension control bolt studs used in various structural connections, including applications such as Battersea Power Station redevelopment.
• Weathering Steel TCB Weather-resistant tension control bolts designed for bridges and structures using weathering steel, providing enhanced durability in outdoor environments.
• TuBolt Specialized tension control bolt product designed for specific structural applications.
• Shear Wrenches (Sales, Hire and Repair) Lightweight, easy-to-use non-impacting tools specifically designed for installing tension control bolts, offered with full sales, hire, and repair services.
• Greenkote Anti-Corrosion Coating Environmentally friendly thermal diffusion metal coating produced in-house at the company's metal coating plant, comparable to galvanising but harder wearing, readily accepts all paint systems, offers a 150-year lifetime guarantee, and removes the risk of hydrogen embrittlement in high-strength bolts.

Quantifiable outcome

• TCBs enable bridge strengthening to be completed within limited rail possession times, minimizing disruption to passengers
• +2 more outcomes

Named customers10 records

Segments8 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

One partnership is on record.

• Greenkote (Licensing/Technology)coreTechnology or IntegrationTension Control Bolts Ltd has a relationship with Greenkote technology. According to the website, Managing Director Tim Stokes represents TCB while CEO Mark Gore represents Greenkote. Greenkote's thermal diffusion process offers exceptional corrosion protection. TCB can provide 150-year lifetime guarantee on Greenkote-coated products.

Scale indicators10 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Hilti: Global construction tools-and-fasteners powerhouse with anchors and direct-fastening systems; competes broadly in steel-connection specs but as part of a much wider portfolio.
• Würth Group: Largest European distributor and manufacturer of fastening materials serving construction and industrial markets; relevant scale peer that bundles fasteners with broader site-supply services.
• Illinois Tool Works (ITW): Diversified industrial manufacturer with a portfolio of fastening solutions (e.g., ITW Shakeproof, Buildex, Paslode); broader and capital-heavier competitor operating adjacent to TCB's specialty structural niche.
• Simpson Strong-Tie: Larger, diversified manufacturer of structural connectors and fasteners for construction; broader portfolio than TCB but overlaps on steel-to-steel connection products and infrastructure specifier relationships.

Direct peers

• Böllhoff: German manufacturer of fastening and assembly technology including high-strength threaded fasteners and structural bolts; comparable specialty-fastener peer serving construction and industrial machinery.
• Bossard Group: Swiss fastening-technology specialist providing engineered fasteners and assembly solutions for industrial and infrastructure customers — overlapping product category and structural-steel end markets.
• Portland Bolt: US manufacturer of custom and stock structural bolts including ASTM A325/A490 high-strength variants; mirrors TCB's specialty structural-bolt positioning for bridge and construction customers.
• Huck International (Arconic/Alcoa Fastening Systems): Specialist in high-strength structural lockbolts and blind fasteners used in steel construction; comparable in product category (preloaded structural fasteners) and bridge/infrastructure end markets.
• Lindapter International: UK-based manufacturer of steel connections and bolted structural fasteners serving the same construction and infrastructure specifier base; directly comparable niche structural-fastening peer to TCB.
• Cooper & Turner: UK manufacturer of high-strength structural bolts and foundation fasteners (including tension-control variants); operates in the same EN 14399 HSFG product category as Tension Control Bolts.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Tension Control Bolts