When your project demands the precision and strength of traditional sizing, our Imperial Bolting collection delivers the reliability you need. We specialise in high-tensile fasteners that bridge the gap between classic engineering and modern industrial standards. Whether you are restoring vintage machinery or maintaining heavy-duty equipment, our range of UNC (Unified National Coarse) bolts and sets offers the perfect fit.
Our selection includes Grade S (8.8 equivalent) and Grade 5 high-tensile options, ensuring your assemblies can withstand significant stress and torque. We stock both full-thread sets and partially-threaded bolts to suit varied fastening depths and shear requirements. You can choose from self-colour finishes for a traditional look or bright zinc plated (BZP) coatings for enhanced corrosion resistance in outdoor or damp environments.
At Duchy Fasteners, we understand that finding the right imperial thread can be a challenge in a metric-dominated world. That is why we maintain a deep stock of sizes, from 1" UNC diameters up to various lengths, including BS.1768-S specifications. By choosing our imperial fasteners, you are getting trade-level quality and the peace of mind that comes with durable, high-grade steel. From agricultural repairs to automotive restoration, we provide the essential hardware to keep your projects moving forward securely.
