High Quality Copper Nuts Hex Nuts Copper hex nuts, Copper Square nuts, Copper cold forged nuts, CNC machined Copper nuts are essential fasteners used in various industrial and electrical applications. Renowned for their excellent electrical conductivity, corrosion resistance, and thermal performance, these nuts are ideal for demanding environments where reliability and durability are critical.
Material Grades C11000 (ETP Copper) – Electrolytic Tough Pitch C10200 (OF Copper) – Oxygen-Free CDA 464 (Naval Brass) – For marine applications C36000 (Free-Cutting Brass) – For high-volume production Manufacturing Processes Hot Forging Temperature range: 650-870°C Suitable for grades: CDA 464, C36000 Better grain structure and strength Machining CNC turning and threading Hexagonal broaching Suitable for all grades Preferred for precision requirements Typical cutting speed: 150-300 m/min Feed rate: 0.1-0.2 mm/rev Thread Standards Metric (ISO) M6 to M64 Coarse thread series (standard) Fine thread series (for specific applications) Class 6H internal threads Imperial (UNC/UNF) 1/4″ to 2″ UNC (Coarse): Most common UNF (Fine): For precision applications Class 2B internal threads Standard Dimensions Metric Hex Nuts (ISO 4032, DIN 934) Thread Size Hex Width (mm) Height (mm) M6 10 5 M8 13 6.5 M10 17 8 M12 19 10 M16 24 13 M20 30 16 M24 36 19
Imperial Hex Nuts (ASME B18.2.2) Thread Size Hex Width (in) Height (in) 1/4 7/16 7/32 3/8 9/16 21/64 1/2 3/4 7/16 5/8 15/16 35/64 3/4 1-1/8 41/64
International Standards ISO 4032: Hexagon regular nuts (style 1) DIN 934: Hexagonal nuts ASTM B16: Free-cutting brass rod, bar, and shapes BS 3643: ISO metric screw threads Tolerances Dimensional Width across flats: ±0.2mm Height: ±0.3mm Thread pitch diameter: 6H (ISO), 2B (UNC/UNF) Surface Finish Machine finish: 1.6-3.2 μm Ra Polished finish: 0.4-0.8 μm Ra Applications Power Industry Transformer terminal connections Spade Connectors Busbar joints Switchgear terminations Current carrying components Bronze Vise Connctors Copper Terminals, Bronze Terminal assembly Marine Industry Shipbuilding Offshore platforms Marine equipment Underwater applications Chemical Industry Process equipment Corrosive environments Chemical handling systems Special Requirements ElectricalConductivity: >75% IACS Current rating based on size Operating temperature: -40°C to 150°C MechanicalTorque values: 30-40% lower than steel Regular retightening may be required Use with compatible washers EnvironmentalCorrosion resistant Suitable for marine environments Temperature limitations
