S-92205A544 1/4"-20 x 1 1/4" Sealing Hex Head Screws
Sealing Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
Installation & Application
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Reliable high-pressure sealing up to 20,000 psi thanks to the integrated silicone rubber O-ring
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for heavy-duty applications
- Wide temperature compatibility from -80° to 400°F, maintaining seal integrity across extreme operating conditions
- Precise thread engagement with Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
- Easy installation and removal with standard external hex drive design for efficient maintenance
- Industry compliance assurance meeting RoHS 3 and REACH regulations for global industrial use
Professional Applications & Engineering Value
This 1/4-20 UNC hex head sealing screw delivers critical performance in demanding industrial applications where fluid containment and pressure integrity are paramount. The 18-8 stainless steel construction provides excellent corrosion resistance, while the silicone rubber O-ring creates a reliable seal that maintains integrity across extreme temperature fluctuations from -80° to 400°F. The partially threaded design with Class 2A thread fit ensures optimal clamping force distribution, making it ideal for hydraulic systems, pressure vessels, and processing equipment where 20,000 psi pressure ratings are required. The external hex drive allows for quick installation and maintenance access in confined spaces.
Specification Summary & Compliance
This sealing fastener features 1/4"-20 UNC coarse threads with Class 2A thread fit for precision engagement, 1-1/4" length with 3/4" minimum thread length, and 7/16" hex head width for standard tool compatibility. Manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental responsibility and regulatory acceptance for industrial applications worldwide.
