ASME Fasteners – Manufacturer, Exporter & Supplier

ASME Fasteners are bolts, screws, nuts and washers manufactured to the inch-based dimensional and mechanical standards published by the American Society of Mechanical Engineers (ASME), often referenced alongside ANSI designations. ASME B18 series standards define precise tolerances for thread pitch (UNC/UNF), head geometry, drive type and material grade, making ASME fasteners the benchmark specification across North American engineering and manufacturing. Sterling Fasteners manufactures the complete ASME catalogue — hex bolts, socket head cap screws, hex nuts, washers and structural fasteners — under a single quality management system, giving buyers one supplier for an entire ASME bill of materials. Our production lines run dedicated inch-series threading and cold-forging equipment, supported by an in-house metallurgical lab for batch testing. Whether you need a single ASME B18.2.1 size or a mixed container of multiple ASME standards, our export team consolidates documentation, packing lists and mill certificates into one shipment.