Precision Engineering
Our Manufacturing Competencies
We deliver manufacturing excellence on a global scale with integrated, high-performance fastener production across 12 manufacturing facilities and 5 distribution sites worldwide. From hot forging and CNC machining to heat treatment, coating, and full kitting, we provide dependable, application-specific solutions to critical sectors including wind energy, nuclear, IGT, oil & gas, and infrastructure.

Core Processes and Technical Expertise

Hot Forging
Delivering strength from the start.
We operate high-capacity forging systems up to 1,250 tonnes, enabling the reliable production of large, high-integrity fasteners. Our in-house expertise in nickel alloy hot forging supports performance in the harshest operational environments.

Automated Forging
Efficiency at scale, consistency by design.
With automated forging cells in the UK and Asia, we streamline the production of M30 to M80 studs. These systems enhance throughput, minimise handling, and ensure precision across high-volume lines.

Thread Rolling
Precision threads, every time.
We operate 60+ thread rolling machines across the group, supporting diameters from M6 to M180. Cold rolling enhances surface finish and fatigue strength, critical for performance in safety-sensitive assemblies.

Heat Treatment
Material integrity through controlled treatment.
We carry out in-house heat treatment processes - including hardening, tempering, quenching, dissolution, ageing, and stress relieving - to precisely control mechanical properties and meet specific application and certification needs.
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Coating
Protection built-in, not bolted on.
CTB Group applies corrosion-resistant coatings, Remcor, Delta, Magni, Zintek — using automated in-house systems. By retaining full control of the process, we ensure coating integrity, reduce reliance on subcontractors, and optimise delivery timelines.

CNC Machining
Engineered to exacting tolerances.
With 200+ CNC lathes operating globally, we support complex geometries and tight tolerances for both bespoke and standard fastener programmes. This ensures readiness for high-specification sectors and engineered-to-order requirements.
Global Manufacturing
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End-to-End Manufacturing
One supplier. Total assurance.
We bring together all core processes — from raw material processing through to heat treatment, coating, testing, kitting, and sub-assembly — under one group structure.
This end-to-end integration:
Reduces supply chain risk
Enhances traceability and quality control
Streamlines procurement and vendor management
Delivers certified, application-ready solutions worldwide
Global Supply Chain, Local Delivery
We align our manufacturing presence with major OEM hubs across energy and infrastructure. With AVL (Approved Vendor List) status across key sectors and a strong localisation strategy, CTB Group is embedded in global supply chains, offering agility, scale, and trust at every stage.
We support critical applications across:
Wind (onshore & offshore)
Nuclear
Oil & Gas
Gas Turbines
Rail & Tunnelling
Construction
