What Tenable Screw Co. Ltd. does

Tenable Screw Co. Ltd. is a UK-based, family-owned precision engineering subcontract manufacturer founded in 1940, producing custom CNC turned and machined components to customer specifications for industrial clients worldwide. The company operates three manufacturing sites located in London (Merton), Marlborough (Wiltshire), and Coventry, with a combined fleet of more than 250 production machines including 71 CNC sliding head units capable of up to 10 programmable axes and combined mill-turn operations in a single setup. It machines components ranging from 0.3mm micro parts to 51mm diameter industrial parts in materials including mild steel, stainless steel, brass, aluminium, titanium, engineering plastics, and aerospace-grade alloys, with annual volumes described as "millions" of parts.

The company's product portfolio spans eight categories: turned components, connectors, threaded components, pins, sockets, assemblies, mill-turn components, and raw materials, positioning it as a single-source subcontract supplier for customers who require prototype-to-mass-production runs in a single relationship. It serves eleven vertical segments — automotive and aerospace as primary verticals, with defence, medical, hydraulics, safety, switchgear, lighting, telecoms, transport, and leisure as secondary segments — under a direct B2B sales model with quote-based pricing determined by part complexity, volume, material, and lead time.

Tenable holds UKAS-certified ISO 9001:2015 accreditation with full raw-material-to-finished-part traceability, PPAP Level 3 documentation, FMEA and process capability support, and compliance with EU/UK regulations including CBAM, RoHS, REACH, and PFAS. It is a member of the British Turned Parts Manufacturers Association (BTMA). Revenue is not publicly disclosed; the company is privately held with no institutional investors, parent company, or external funding rounds identified in the available data.

Name

Tenable Screw Co. Ltd.

Legal name

Tenable Screw Company Ltd.

Website

https://tenable.co.uk

Company type

Private

Founded year

1940

Operating status

Operating

Headcount range

11–50 employees

Short description

Tenable Screw Co. Ltd. is a family-owned UK precision engineering subcontract manufacturer producing custom CNC turned and machined components (0.3mm to 51mm) for automotive, aerospace, medical, defence, and other industrial customers, operating three UK sites with 250+ production machines.

Ownership category

akta.pro rank

Product category

Precision Turned Parts Manufacturing

NAICS

Machine Shops (332710), Turned Product and Screw, Nut, and Bolt Manufacturing (33272)

SIC

Screw Machine Products (3451)

akta.pro primary industry

CNC Machine Tools (Turning, Milling, Machining Centers) (IMAHADAA)

Keywords

• Precision turned parts
• CNC machining services
• Subcontract manufacturing
• Precision engineering components
• Turned components manufacturing

Headquarters

HQ city

Coventry

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Precision Turned Parts Manufacturing: Contract manufacturing of custom CNC turned parts, machined components, and assemblies. Revenue generated through production of precision components to customer specifications, ranging from prototype parts to mass production quantities. Payments for parts manufactured per customer order, typically through long-term supply contracts and ongoing B2B relationships.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

Tenable Screw Co. Ltd. is a UK-based precision engineering company that manufactures custom CNC turned parts and machined components to customer specifications, ranging from prototype parts to mass production quantities. The company operates across three UK manufacturing sites with over 250 production machines, producing millions of precision components annually across diameters from 0.3mm to 51mm in materials such as steel, stainless steel, brass, aluminium, titanium, and engineering plastics for industrial customers in automotive, aerospace, defence, medical, and other sectors.

Product overview

Tenable Screw Co. Ltd. is a precision engineering company offering a unified portfolio of CNC turned and machined components, comprising eight core product categories: Turned Components, Connectors, Threaded Components, Pins, Sockets, Assemblies, Mill-turn Components, and Materials. The company operates as a single-source subcontract manufacturer, combining traditional engineering craftsmanship with advanced CNC sliding head technology to produce precision parts from 0.3mm to 51mm diameter, from prototype to high-volume production runs across three UK manufacturing sites.

Differentiator

Problem solved

Functional benefit

Products and services

• Turned Components Precision CNC turned components manufactured to customer specifications, ranging from simple parts to complex geometries, for various industrial applications across automotive, aerospace, defence, medical, and other sectors.
• Connectors Custom connectors manufactured annually in millions, ranging from intricate 1mm micro components to larger shell and coupling nuts up to 51mm in diameter, essential to electronic devices and various industrial applications.
• Threaded Components Non-standard customer bespoke threaded components manufactured in brass, steel, and aluminium up to 51mm diameter, including male/female threads and single/multi-start threads for diverse industrial applications worldwide.
• Pins Bespoke pins manufactured in copper, brass, steel and nickel silver, ranging from micro components as small as 0.3mm diameter to heavy duty H.V. applications for various industrial uses.
• Sockets Custom sockets manufactured for a wide range of industries, capable of machining various materials and handling medium to high volume demands with fast lead times.
• Assemblies Bespoke customer assemblies and machined parts, from simple screw and cable assembly parts to more complicated plungers and bespoke sub-assemblies, supplied annually in millions using secondary operations staff and equipment across three UK sites.
• Mill-turn Components CNC sliding head machine products combining turning lathe principles with milling machine capabilities, featuring up to 10 programmable axes for precision milled profiles, power tool operations, and complex turning and threading procedures performed in a single operation.
• Materials Raw materials supported for manufacturing including Mild Steel, Stainless Steel, Steel Alloys, Copper, Brass, Aluminium, Engineering Plastics, Titanium, Duplex, and specialized aerospace grades, sourced globally with full traceability.

Named customers9 records

Segments11 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators5 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Cox Manufacturing: US-based precision turned parts manufacturer with a multi-decade operating history serving automotive, aerospace, medical, and industrial customers. Direct counterpart in business model, scale, and precision turning capability.
• Dawson Shanahan: Wales-based precision turned parts subcontractor with a similar contract manufacturing model serving automotive, medical, aerospace, and electronics customers across the UK and Europe. Highly comparable in scale, customer mix, and operational focus.

Emerging players

• Fictiv: US digital manufacturing platform providing on-demand precision machined parts through a distributed supplier network. Targets the same SME and enterprise prototype customers as Tenable's lower-volume work.
• Protolabs: US digital manufacturing services provider for prototypes and low-volume production across CNC, injection molding, and 3D printing. Competes directly for the prototype and short-run portion of Tenable's customer base.
• Xometry: US digital manufacturing marketplace connecting OEMs with on-demand precision parts suppliers including CNC turning. Competes for the same prototype and low-volume customer relationships through a digital-first model.

Broad incumbents

• Hardinge: US-based precision machine tool manufacturer (lathes, grinding machines, workholding) with adjacent precision machining services. Operates broadly in the precision turning domain with overlapping customer base and equipment supply relationship.
• Star Micronics: Japanese manufacturer of precision CNC sliding head machines, the same equipment class at the core of Tenable's production fleet. Competes in precision turning technology supply rather than contract manufacturing.
• Tornos: Swiss manufacturer of precision turning machines including sliding head and multi-spindle platforms. Supplies the same technology class Tenable uses and serves overlapping customer verticals in medical, automotive, and electronics.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/Tenable_Screw
• LinkedInlinkedin.com/company/tenable

Compliance1 record

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 Tenable Screw Co. Ltd.