Cotter Pins for Heritage Rail: Keeping Historic Trains Moving

For over a decade, local heritage railways have relied on Pinstructure for the supply of high-quality, UK-manufactured mild steel split cotter pins. These small components play a vital role in the safe operation and ongoing preservation of both steam and diesel trains. 

A small component with a big responsibility

Split cotter pins are used throughout heritage rolling stock and locomotives, from engines and running gear to door hinges and ancillary fittings. In environments where vibration, heat and mechanical load are constant, reliability is essential. Our cotter pins are manufactured to consistent standards, ensuring dependable performance in critical maintenance and restoration work.

Materials and sizes to suit heritage applications

Understanding that heritage rail projects often require specific materials to match original designs or operating conditions, we manufacture split cotter pins in a wide range of sizes and materials, all in regular production at our UK site. These include:

Mild steel
Multiple grades of stainless steel
Brass
Phosphor Bronze
Copper

This breadth of choice allows heritage engineers and volunteers to select fasteners that are both practical and historically appropriate.

UK manufacturing, fast delivery, decades of experience


With almost five decades of fastener manufacturing experience, Pinstructure combines traditional manufacturing knowledge with modern manufacturing capability. Our UK-based manufacturing enables short lead times and fast delivery, helping heritage railways minimise downtime and keep valuable rolling stock in service.

Supporting heritage rail into the future

As railways continue to preserve and operate historic trains for future generations, dependable components remain essential. Pinstructure cotter pins have become a preferred fastener for heritage rail maintenance, helping to keep these iconic trains running safely and reliably for many years to come.

Celebrating 200 years of railways

The year 2025 marks the 200th anniversay of the modern railway, dating back to 1825 and the opening of the Stockton and Darlington Railways. As heritage railways commemorate two centuries to rail history, Pinstructure is proud to support the ongoing operation and preservation of these living pieces of engineering heritage - using British-made components that honour the past while supporting the future.