
Products
Special fasteners, made in the UK
HAGUE FASTENERS is a UK manufacturer of special fasteners and bespoke bolting, made to customer drawings and specifications in small batches for nuclear, defence, oil and gas, power generation and heavy engineering.
1971
Making special fasteners for over half a century
1 to 500
One-offs, 5, 10, 25 or several hundred
ISO 9001
Quality management, certified by Alcumus ISOQAR
UK, EU, US
Mill origin of every bar
What is a special fastener?
When the catalogue part will not do
Special fasteners are non-standard fasteners made to specific customer requirements where off-the-shelf parts are unsuitable. HAGUE FASTENERS has made special fasteners in the UK since 1971, in our own facility in Willenhall, West Midlands.
A fastener becomes special through its dimensions, thread, material or the proof that comes with it. Many are used in safety-critical and regulated equipment, where the part must be traceable from mill heat to installation.
Typical features
- Unusual diameters, lengths, head forms or drive features
- Non-standard or special thread forms
- High performance alloys including Inconel, Hastelloy, duplex, super duplex, Monel and Nimonic
- Reverse engineered fasteners for obsolete or legacy equipment
- Specific coating, testing or certification requirements
Our niche
Four kinds of special

Bespoke designs
Parts made to customer and OEM drawings, CAD models and approved samples, that exist nowhere else.

Special materials
Standard catalogue sizes in superalloys, duplex and other grades nobody stocks.

Assured origin
Standard parts that must be made from UK, EU or US material, with the paperwork to prove it.

Uncommon threads
Metric fine, BSW, BSF, UNC, UNF and other hard-to-find forms, cut or rolled.
Reverse engineering
From a worn part to a certified replacement
When a drawing no longer exists, we can work from the part itself. Dimensions are measured and verified, then replacements are made to the recovered specification with the right inspection and certification.

01
Photograph
Send a photograph of the part beside a rule for a quick estimate.
02
Sample
Send the sample, or we can arrange collection for large items.
03
Measure
We measure the part and confirm dimensions, thread and material with you.
04
Improve
Upgrade the material, length or thread form if the original fell short.
05
Make and certify
Manufactured, inspected and released with full documentation.
Engineering support
More than a machine shop
Drawing review
Drawings and specifications checked at contract review, with risks flagged early.
Material advice
Material and coating selection for corrosion, temperature and fatigue.
Breakdown service
Urgent orders started quickly from stocks of steel and superalloy bar.
Controlled quantities
Prototypes, small batches and repeat scheduled supply without forcing unsuitable batch sizes.
Product families
Special fasteners we make
Bolts and screws
Hexagon, 12-point, fitted and special head bolts
Studs
Stud bolts, engineer, waisted and wheel studs
Nuts
Hex, locking and special nuts
Socket screws
Non-standard cap, shoulder and set screws
Washers
Plain, spherical, spring and tab washers
Milled components
Machined parts to drawing
Quality and traceability
Proof behind every part
Every special fastener is made under our ISO 9001 quality system, with full material traceability and dimensional control through manufacture. Inspection can include first article inspection and documented verification against your drawing, with certificates supplied as your contract requires.
- ISO 9001 certified by Alcumus ISOQAR
- PED 2014/68/EU approval, certified by BSI
- Members of BSI, BSSA and Made in Britain
- EN 10204 3.1 and 3.2 certificates
- Independent UKAS-accredited testing

Questions
Frequently asked questions
What qualifies as a special fastener?
A special fastener is any fastener made outside standard catalogue dimensions or specifications. That may be a non-standard size, a special thread such as metric fine or Whitworth, an unusual head form, an upgraded material such as Inconel 718 or Hastelloy C276, or specific coating, testing or certification requirements.
Can you work from a sample or damaged part?
Yes. We reverse engineer special fasteners from samples or damaged parts by measurement and verification, then make replacements with the right inspection and certification.
What are typical lead times for special fasteners?
It depends on material, complexity and any testing required. One-off and small batch parts can often be made quickly, and urgent breakdown and outage orders are prioritised wherever possible.
Do you manufacture special fasteners in the UK?
Yes. All our special fasteners are made in our own facility in Willenhall, West Midlands, from UK, EU or US material.
Do you supply small quantities?
Yes. We make one-off prototypes and batches of 5, 10, 25, 50 or 100, through to several hundred and repeat scheduled supply.
Special requirement?
Send us the difficult ones
Email sales@haguefasteners.co.uk with your drawing, specification or sample, and we will come back to you quickly.
