Copper bolt

C11000 (electrolytic tough pitch) offers ≥100% IACS conductivity and is the most common choice for electrical applications. C10100 (oxygen-free copper) provides higher purity and better performance in reducing atmospheres or high-vacuum environments, with slightly lower conductivity.

Yes, but galvanic corrosion may occur when copper contacts aluminum or bare steel in moist environments. Tin plating, silver plating, or anti-seize compounds are recommended to prevent galvanic reactions. For aluminum connections, use bi-metal washers or appropriate surface coatings.

All parameters are customizable: diameter (M2–M36 or imperial), length (up to 400mm), head style (hex, socket, flat, round, or custom), thread pitch (metric, UNC, UNF, BSW, or special), surface finish (bright, tinned, silver plated, oxidized), and chamfer or groove details.

Copper threads can gall under high friction. Use anti-seize lubricant (silver-based or graphite) on threads before installation. For high-torque applications, nickel-coated or silver-plated threads reduce friction and prevent cold welding. Always use calibrated torque tools to avoid over-tightening.