Copper Oval Bolts: Key Features, Applications

2025-04-30

As a specially designed fastener, oval copper bolts play a key role in machine building, electrical equipment and electronic engineering.

 

Oval copper bolts are manufactured from copper alloys and are divided into three main categories:

Pure copper bolts: conductivity ≥ 58MS/m (IACS standard), suitable for high conductivity scenarios

Brass bolts (H62/H65): copper content 62-65%, tensile strength 400-600MPa

Bronze bolts: add tin, aluminum and other elements, wear resistance increased by 40%.

 

Its unique oval head design has:

Anti-rotation characteristics (contact surface increased by 30%)

Low-profile structure (25% lower height than hexagonal head)

Aesthetically pleasing streamlined shape

 

oval copper bolts


Oval copper bolts application areas:

1. Power equipment field

Transformer installation: Utilizing the excellent electrical conductivity of copper (resistivity 1.7 x 10 -8Ω-m)

Switchgear connection: oval head design to avoid tool interference

Grounding system: corrosion resistance 3 times higher than steel bolts

2. Electronics manufacturing industry

Circuit board fixing: to prevent ESD (electrostatic discharge) damage

RF component mounting: low high-frequency loss under skin effect

Heat sink connection: thermal conductivity 386W/(m-K)

3. Special machinery and equipment

Ball mill liner fixing: non-standard customized length up to 500mm

Chemical pipeline sealing: acid and alkali corrosion resistance (pH2-12 range)

Food processing equipment: in line with FDA food safety standards


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