Aluminum oxide ceramic hexagonal socket screw

Aluminum oxide ceramic hexagon socket screws are precision manufactured with aluminum oxide (Al ₂ O3) with a purity of over 99.5%, and are a special ceramic fastener with metal screw thread specifications. It not only has the mechanical connection function of traditional metal screws, but also integrates the unique advantages of high temperature resistance, electrical insulation, chemical corrosion resistance, and non-magnetic properties of high-tech ceramics, making it an ideal connection solution to solve the problem that metal screws cannot handle in extreme environments.

Q: My device needs to be used in a strong acid and alkali environment, and metal screws will quickly rust and corrode. What should I do?
Answer: Aluminum oxide ceramic screws have excellent chemical inertness and corrosion resistance, and can work in strong acidic and alkaline environments for a long time, effectively solving the problems of rust and corrosion of metal screws.
Q: In semiconductor equipment, it is required to avoid metal contamination and electromagnetic interference. Ordinary screws cannot be used. What are the alternatives?
Answer: This product is made of high-purity non-metallic ceramics, which is not only completely non-magnetic, but also has excellent electrical insulation performance, which can effectively prevent magnetic field interference or current short circuit inside the equipment, ensuring the purity of equipment operation.
Q: My heat treatment furnace requires fasteners. The temperature can reach over 1000 ℃, and ordinary bolts have softened. Can ceramic ones withstand it?
Answer: Our alumina ceramic hexagon socket screws can be continuously used at high temperatures up to 1500 ℃~1600 ℃, while maintaining extremely high hardness and structural stability, without any high-temperature creep and softening problems of metal bolts.

The reason why aluminum oxide ceramic hexagonal screws have become the preferred choice under extreme working conditions is due to their unparalleled material properties and exquisite manufacturing processes:

1. Extreme heat resistance: Using 99.5% high-purity alumina raw material, it can withstand temperatures of 1500 ℃ or even higher for a long time, suitable for high-temperature furnaces, heat treatment equipment, etc.
2. Excellent electrical insulation: Ceramics are natural insulators, and using this screw to fix electrical components or circuits can effectively prevent current leakage without the need for additional insulation gaskets, ensuring equipment safety.
3. Comprehensive chemical corrosion resistance: Whether it is strong acid, strong alkali or organic solvents, they cannot corrode the dense alumina ceramic structure, especially suitable for chemical pump valves and electroplating production lines.
4. Non magnetic and dust-free: In clean room environments such as semiconductors and medical devices that require high cleanliness, the non-metallic properties of ceramic screws prevent electrostatic adsorption of dust and metal pollution.

Specifications, Dimensions, and Customization Services
We are well aware that standard parts cannot meet the special needs of all cutting-edge equipment. Therefore, in addition to offering commonly used standard thread specifications such as M3 to M20 (including metric coarse threads) and a variety of lengths (such as 5mm to 50mm) in stock, we also provide in-depth “customized to drawing” services:
-Non standard dimensions: Special threads, long necks, large flat heads, and other irregular parts.
-Special processing: can add axial through holes (ventilation/wiring), side openings, etc.
-Component matching: Can provide aluminum oxide ceramic nuts and washers of the same material.

Customer Application Cases
Case: A semiconductor equipment manufacturer
-Requirement background: When developing a new generation of plasma etching machine, the company needs to tighten the internal silicon guide plate. The interior of the equipment is in an extreme environment of high vacuum, fluorine-containing corrosive gases, and the presence of radio frequency electromagnetic fields. The initially used coated metal screws not only caused electromagnetic interference, but also resulted in contamination due to exposure to trace metals, leading to a decrease in product yield.
-Solution: Our technical team provided customized length M6 alumina ceramic hexagon socket screws and corresponding ceramic washers. This solution completely replaces metal components and exposes them directly to the plasma chamber.
-Final effect:
-Eliminating pollution: Completely eliminating metal ion pollution, the yield of customer products has increased by about 3%.
-No interference: eliminates interference with radio frequency electromagnetic fields, significantly improves plasma stability.
-Long term durability: After 8000 hours of continuous durability testing, the ceramic screws have no corrosion, deformation, or weight loss, far exceeding customer expectations.

Have you found a reliable solution to the challenges of high temperature, corrosion, and insulation? If you are looking for fasteners that can cope with extreme “end” environments, or have non-standard drawings that need to be evaluated, please feel free to contact us immediately to obtain samples or submit your customization requirements!

Brudeze Ceramics supplies and sells a wide range of high-quality quartz glass, including alumina ceramics, zirconia ceramics, silicon nitride ceramics, aluminum nitride ceramics, silicon carbide ceramics, boron carbide ceramics, bioceramics, machinable ceramics, etc. We can meet the customization requirements of various ceramic products.