Ceramic (Alumina) Hexagon Socket-Cylinder Head Cap Metric Screw - ISO 4762

SKU: CERSH305
Ceramic Material Data Sheet
Regular price $50.10 inc. VAT

Ceramic (Alumina) Hex Socket Cylinder Head Cap Metric Screws conforming to ISO 4762 are engineered for extreme operating environments requiring exceptional hardness, electrical insulation, and high-temperature stability. Manufactured from high-purity Alumina (Al₂O₃) ceramic, these fasteners provide outstanding wear resistance, corrosion resistance, and dimensional stability in applications where conventional metals and polymers cannot perform.

Their hex socket drive and cylinder head design allow secure fastening so their excellent mechanical integrity under elevated temperatures and chemically aggressive conditions can be applied. Their non-magnetic and electrically insulating properties make them particularly suitable for semiconductor processing, laboratory equipment, and high-voltage applications.  

These screws are widely used in semiconductor equipment, furnaces, laboratory apparatus, electrical insulation systems, and high-temperature industrial applications requiring non-metallic fasteners with exceptional durability and chemical resistance.

Key Features

  • Manufactured from high-purity Alumina (Al₂O₃) ceramic
  • Conforms to ISO 4762 specifications
  • Hex socket drive for secure installation
  • Exceptional hardness and wear resistance
  • Excellent chemical and corrosion resistance
  • High-temperature stability in extreme environments
  • Maximum duty temperature 2732ºF
  • Electrically insulating and non-conductive
  • Non-magnetic and non-sparking
  • Low thermal expansion and high dimensional stability
  • Suitable for vacuum and high-purity applications

Produced in a range of metric sizes. 

  • Type Socket Head Cap Screws
  • SKU CERSH305
  • Material Ceramic AL2O3
  • Drive Type Hex Socket
  • Color
    • White
  • Measurement System Metric
  • ISO Standard ISO 4762
  • DIN Standard DIN 912

Material: Ceramic (99.5% Alumina Al₂O₃)

Maximum Duty Temperature: 2732ºF

Flammability: Noncombustible

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Product Dimensions

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Ceramic (99.5% Alumina Al₂O₃)

Properties and applications

  • Properties

    - Extremely High Hardness
    - Extremely High Temperature Operation Capability
    - Excellent Creep Resistance
    - Outstanding Resistance to Acids & Alkalis

  • Common Applications

    - High Temperature Furnaces and Kilns
    - Vacuum & Ultra-High Vacuum Equipment
    - Laboratory & Analytical Equipment
    - Aerospace & Defence Systems

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