Alumina Fasteners

Edgetech Industries, Advanced Ceramics Division supplies high-quality and competitive price advanced Alumina Fasteners products.

SKU: O13-F

Alumina Fasteners, Al2O3 Ceramic Screws, Nuts, Washer


Alumina ceramic is the most common technical material and relatively traditional ceramic. High purity alumina has excellent performances in electrical insulation, high chemical resistance, and low thermal expansion. Alumina Fasteners (nuts, screws, washers, bolts) are used to make parts for CVD, ion implants, photolithography, and semiconductor. Alumina fasteners are made of materials with very low thermal expansion coefficient and excellent wear resistance. We also provide zirconia fasteners.


 Specifications of Alumina Fasteners


Density3.8~3.9 g/cm3


Specifications of Typical Alumina Ceramics 


AL2O3 Purity%9799.8
Color N/AWhiteIvory
HardnessHV, GPa13.818
Thermal ConductivityW/ (m K)2532
C.O.T.E.In / In°C (x107)7778
Working temperature°C15001750
Dielectric Constant N/A9.59.8
Volume ResistivityOhm-cm>1014>1015
Dielectric StrengthKV/mm1620


The above chart just demonstrates the typical properties of common alumina ceramic we use to produce our alumina parts. Please notice that the properties of customized alumina parts vary due to different processing. Edgetech Industries, Advanced Ceramics Division provides alumina products according to your specified instruction or does its best to meet requirements.




-Spare parts for pan-semiconductor equipment (manufacturing equipment such as LCD and LED)


-Wear parts

-General machinery, hydraulic components

-Used as injector tubes, gas nozzles, and insulators.

-High-temperature situations & a protector for high-temperature thermal couples.


Packing of Alumina Fasteners


As a ceramic material, Alumina Fasteners are quite fragile in a lot of cases. Our Alumina Ceramics are carefully handled to minimize damage during storage and transportation. Suitable outer boxes and inner cushioning materials are used, and vacuum packing is also engaged for some of the parts.


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