Fastener Manufacturing2023-07-21T10:21:05+01:00
Double Ended Stud Fastener

Manufactured Fastener Supplier

We have both the capacity and expertise to produce your complex screws, bolts and nuts.

Our state-of-the-art fastener manufacturing facilities specialise in cold forging and ensure a responsive supply chain through rapid prototyping and testing, quick part turnarounds and full-scale production.

Hex Flange Bolt

Hex Flange Bolt

Torx Pan Head Cone Point Machine Screw

Torx Pan Head Cone Point Machine Screw

Optimas Pan Head Internal Torx Titanium Pilot Point POWERLOK Bolt

Pan Head Internal Torx Titanium Pilot Point POWERLOK® Bolt

Torx Pan Head Self-Tapping Screw

Torx Pan Head Self-Tapping Screw

Torx Button Head Flange Dog Point

Torx Button Head Flange Dog Point

Hex Pilot Point Flange Screw & Washer

Hex Pilot Point Flange Screw & Washer


Not only are we a leading distributor of standard fasteners and components to many sectors, from automotive to industrial, but we also manufacture custom components, special fasteners and non-standard parts.
Founded in Birmingham in 1932 as the ‘Barton Rivet Company’, we relocated to​ Droitwich Spa in 1950, and in 2006 moved to our​ current 55,000 sq. ft facility​. In 2015, Barton were brought in to the Optimas business as the second manufacturing site within the group, alongside our North America plant in Wood​ Dale, Chicago​.
Housed in our advanced manufacturing facility in Droitwich, UK, we utilise the latest machinery, cold-forming processes and in-house design engineering to meet your specific fastening requirements.
Optimas are the only manufacturer with cold-form facilities on both sides of the Atlantic. By sourcing your nuts, bolts and screws locally and onshoring your supply, lead times can be significantly reduced from PO to delivery, and simplified transportation provides you with a more sustainable and efficient supply chain.
For efficiency, quality and security, partner with Optimas for your fasteners and let us de-risk your supply chain.


Our fastener manufacturing plants specialise in cold forging, which is typically less expensive than hot forging. Cold forging processes are highly reproducible, resulting in:

  • High quality fasteners
  • Faster production throughput
  • Nearly zero material waste
  • Minimal machining
  • Little to no finishing work
Cold Forging Machine Manufacturing


Our range of manufactured fasteners is vast, and includes both standard and non-standard parts.  We can manufacture fastening solutions from 6mm to 175mm long, with a diameter of 2mm to 42mm.

Cold Formed Manufactured Cam Bolt Fastener
  • Ball Studs
  • Banjo Bolts
  • Cam Bolts
  • Cap Head Bolts
  • Double Ended Studs
  • Engineered Nails
  • Hex Flange Bolts
  • Socket Sets (Grub Screws)
  • Security Fasteners
  • Solid Rivets
  • Spacers
  • Special Nuts
  • Threaded Stud Bolts


We manufacture parts with a variety of materials such as:

Raw Material Steel Wire Roll
  • Aluminium
  • Brass
  • Boron Steel
  • Carbon Steel (low to high)
  • Copper
  • Mild Steel
  • Nickel
  • Phosphor Bronze
  • Stainless Steel


Below is a sample of finishes that we can manufacture fasteners with.

Chrome Nut
  • Anodised
  • Black Japanned
  • Black Nickel
  • Black Zinc
  • Blackodize Chemical Black
  • Brass
  • Bright Nickel
  • Chemi-Black
  • Chromate Passivation
  • Chrome
  • Copper
  • Hot Dip Galvanized
  • Hydrogen De-Embrittlement
  • Mechanical Zinc
  • Nickel
  • Nickel Chrome
  • Organic
  • Phosphating
  • Rilsan
  • Sheraplex
  • Sherardizing
  • Spun Galvanizing
  • Stayblack
  • Thread sealant/patches
  • Tin
  • Yellow Zinc
  • Zinc Cobalt
  • Zinc Flake
  • Zinc Nickel
  • Zinc Phosphate
  • Zinc Plating


Optimas can manufacture the following types of threads, in full or partial threads.

Phillips Countersunk Screw
  • ACME
  • British Association (BA)
  • British Standard (BSF/BSW)
  • ISO Metric (Course/Fine/Extra Fine)
  • MJ Threads
  • Multi Start
  • Plastic Screws
  • Self Aligning
  • Self Tapping
  • Unified Coarse / Fine (UNC/UNF)
  • Wood Screws


We’ve formed partnerships with well-known brands for their innovative thread-forming and drive solutions that also include weight and height saving solutions.

  • Taptite 2000®
  • Taptite Pro®
  • High Torque®
  • Mathread®
  • Matpoint®
  • Remform®
  • Phillips Square-Driv®
  • MORTORQ® Super
  • External MORTORQ®
  • Powerlok®
  • Internal / External 6-Lobular
  • Crosshead
Supply chain stability – UK made​
Cost-effective methods of manufacturing​
Superior quality​
Fast production throughput​
World class engineering​
Minimal material waste​
Highly repeatable process​
Manufacturing Capabilities
Cold Forming (Length 6 – 175mm, Diameter 2 – 18mm)​
Bar Turning (Max length 140mm, Diameter 6 – 42mm)​
Variety of drive types​
Rapid prototyping​
Range of materials​
Plastics (Bar Turning)​
Laser measuring & SPC​
6 Lobe Drive Head Hex Socket Drive Phillips PSD Hex
6 Lobe Hex Socket Phillips PSD Hex
Hex Flange Drive 12 Pt Hex Flange External 6 Lobe Drive
Hex Flange 12 Pt Hex Flange External 6 Lobe

£120,000 Annual Cost Saving

 Global commercial garage door manufacturer worked with Optimas to redesign a part that eliminated downtime and yielded cost savings without sacrificing performance.


Our specifically-adapted heading machines are designed to compress wire-drawn raw steel between two dies until the final shape of the part is produced.

Station “fingers” transfer each part to the next die between each machine compression. The tooling and dies that compress the material are designed internally and then ordered at the point of receiving a purchase order. If required, they will then be adjusted to achieve the final fastener design. 

Typical Lifecycle for New Parts

Milling (C & Y Axis)
Screw cutting (Right & left-handed threads)
Superpositional/Simultaneous machining
IATF 16949 certified
Advanced inspection and measuring capabilities
Best-in-class PPM (Parts-per-million)
ISO 9001 and 14001 certified
PPAP and other quality certification
100% audit approval
Industry-leading validation equipment
Partner performance management strategies


Optimas Cold Form Fastener Manufacturing
  • Drilling (Oil feed holes, cross-drilling, off centre)
  • Pointing
  • 100% optical verification
  • CNC Turning
  • Plating
  • Heat Treating
  • Patching


  • 29 cold heading machines
  • 45 secondary operations & thread rolling machines
  • 500 ton of raw material held on-site
  • Modern testing equipment & laboratory
  • 250M pieces produced per year
  • 1M pieces produced per day
  • 300 different SKUs
  • 250 tonnes of raw material used per month


How are fasteners (screws and bolts) manufactured?2022-03-18T16:06:36+00:00
  1. Wire is uncoiled, straightened and cut to length
  2. The steel wire is moulded into the correct shape at room temperature using cold forging / forming  / heading machines.
  3. The head of the bolt or screw is progressively formed by forcing the steel into various dies at high pressure.
  4. The screw or bolt threads are formed by rolling or cutting.
  5. The fastener is exposed to extreme heat to harden the steel.
  6. The surface is treated depending on the application.
  7. The fasteners are quality checked to ensure uniformity and consistency, and then packed for despatch.
What are special fasteners?2022-03-18T16:06:13+00:00

Special fasteners are industrial fastening solutions that hold heavy industrial components together under extreme pressure.  They are made out of materials that are corrosion-resistant such as stainless steel.

Who manufactures fasteners in the UK?2022-03-18T16:05:49+00:00

One of Optimas’ fastener manufacturing plants is located in Droitwich in the midlands.  Our screws, bolts and nuts can be despatched to you or our staff can replenish your fastener and C-Class component stocks on-site.  Learn more.

How do I identify the manufacturer of a bolt?2022-03-18T16:05:28+00:00

Manufacturers often place their mark on the head of bolts and screws, and on one end of studs and stud bolts.  Our fasteners that are manufactured in the UK are stamped with BCF (Barton Cold Form).

Is cold forming the same as cold forging?2022-03-18T16:04:59+00:00

Yes.  They are all words used to describe the process carried out to produce a precise combination of high speed and extreme pressure to shape a material into a part.

Which is better? Cold forging or hot forging?2022-03-18T16:04:40+00:00

The biggest advantage of cold forging is its lower cost. Cold-formed parts require less finishing work which results in fewer fabrication steps. Other benefits are less potential for parts contamination during forging, greater control over dimensions, greater ability to handle high stress and high die loads and the ability to produce near-net shape parts.


Manufacture Your Specific Fastener Today