
In aerospace manufacturing, precision is non-negotiable. Yet one of the most common—and costly—mistakes still comes down to something as basic as using the wrong fastener system. Whether you’re dealing with imperial or metric fasteners, getting the specifications right from the outset helps avoid rework, delays and compromised safety. At JP Aero, we specialise in supplying aerospace-grade fasteners that conform to both metric and imperial standards—ensuring seamless integration, whatever your specification. Metric vs. Imperial Fasteners: Why the Difference Matters For many engineers, fasteners are just components—until they cause a failure. The choice between metric and imperial fasteners affects every detail of design, procurement, assembly and maintenance. Misalignment between metric thread and threads per inch (TPI) can lead to stripped threads, compromised