S-94555A144 6-32 x 1/4" Ceramic Hex Head Screws

Ceramic Hex Head Screws

0256FA00006 Ceramic Hex Head Screws
0256FA00006 Ceramic Hex Head Screws

Image may differ from product. See technical specification for details.

Part No.
Part No. 0256FA00006
Equivalent to mcmaster :
94555A144

Basic Information

Color Off-White
System of Measurement Inch

Head Parameters

Head Type Hex
Head Width 1/4"
Head Height 3/32"

Dimensions

Length 1/4"

Thread Parameters

Thread Type UNC
Thread Size 6-32
Thread Diameter 0.138"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style External Hex

Material & Strength

Material Alumina Ceramic
Hardness Not Rated

Temperature & Environment

Maximum Temperature 3000°F
REACH Compliant
RoHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
Price available upon request. Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
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Key Features & Benefits at a Glance

  • Exceptional heat resistance up to 3000°F, ensuring reliable performance in extreme temperature environments without degradation
  • Corrosion-resistant alumina ceramic material provides long-lasting durability in harsh industrial conditions, eliminating rust and chemical wear
  • External hex drive design allows for secure, straightforward installation with standard tools, reducing assembly time and risk of stripping
  • Coarse UNC threads with Class 2A fit deliver consistent, vibration-resistant fastening for stable connections in high-stress applications
  • Full threading along the 1/4" length maximizes grip and load distribution, enhancing joint integrity across various materials
  • RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence, supporting sustainable manufacturing practices
  • Off-white color and ceramic composition offer electrical insulation properties, ideal for specialized electronic or thermal management systems

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these alumina ceramic hex head screws address critical challenges in high-temperature operations, such as furnace assemblies, aerospace components, and semiconductor equipment. The 6-32 UNC coarse thread and Class 2A thread fit provide precise, reliable fastening that resists loosening under thermal cycling and mechanical stress. With a maximum temperature rating of 3000°F, they prevent failure in extreme heat, while the external hex drive ensures easy installation in confined spaces. Ideal for applications requiring corrosion resistance and electrical insulation, these screws enhance safety and longevity in high-temperature industrial fasteners, reducing maintenance costs and downtime.

Specification Summary & Compliance

This product adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. It is manufactured from high-purity alumina ceramic and features a coarse thread spacing and right-hand thread direction. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring environmental and safety standards are met for industrial use.

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