S-94555A323 1/4"-20 x 1 1/4" Ceramic Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional high-temperature resistance up to 3000°F, maintaining structural integrity in extreme thermal environments without degradation
• Superior electrical insulation properties for safe use in electrical applications where conductivity must be avoided
• Outstanding corrosion resistance in harsh chemical environments, ensuring long-term reliability without protective coatings
• Precision UNC coarse threading with Class 2A fit provides excellent engagement and reliable fastening performance in various materials
• Full threading design delivers maximum holding power and uniform stress distribution along the entire screw length
• External hex drive configuration allows for easy installation and removal with standard tools in confined spaces
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets international substance restriction standards

Professional Applications & Engineering Value

This alumina ceramic hex head screw delivers critical performance advantages in demanding industrial settings where metallic fasteners fail. The off-white alumina ceramic material provides inherent electrical insulation properties while offering exceptional thermal stability up to 3000°F, making it ideal for high-temperature furnaces, semiconductor processing equipment, and thermal barrier applications. The 1/4"-20 UNC coarse thread with Class 2A fit ensures reliable engagement in brittle materials where fine threads might cause cracking. The fully threaded design maximizes load distribution, reducing stress concentration points that commonly lead to fastener failure in thermal cycling environments. These ceramic hex head screws solve critical challenges in industries requiring non-conductive, corrosion-resistant fasteners that maintain performance under extreme thermal conditions.

Specification Summary & Compliance

This alumina ceramic hex head screw features precise 1/4"-20 UNC coarse threads with Class 2A thread fit tolerance according to inch measurement standards. The screw measures 1-1/4" in length with fully threaded construction and right-hand thread direction. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental compliance and restricted substance control for international industrial applications.