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