EN 15048, formally known as EN 15048-1, pertains to the specification of non-preloaded structural bolting assemblies for general applications. This European Standard specifies requirements for the performance characteristics of assemblies made from bolts, screws, and washers which are used in non-preloaded structural bolting applications. These components are made of carbon steel or alloy steel and are intended for use in structural projects that require a reliable and robust joining mechanism. The standard covers the dimensions, tolerances, mechanical properties, and surface finishes of these bolting assemblies, ensuring uniformity and quality across products used within the European Union. EN 15048 is crucial for manufacturers, suppliers, and construction professionals, as it ensures that structural bolting assemblies meet rigorous safety and performance criteria, contributing to the structural integrity and longevity of construction projects.