S-92205A585 5/16"-18 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 sealing performance with silicone rubber O-ring that withstands extreme pressures up to 20,000 psi
- Exceptional corrosion resistance thanks to 18-8 stainless steel construction for long-lasting reliability in harsh environments
- High tensile strength of 80,000 psi ensures structural integrity under heavy loads and vibration
- Broad temperature compatibility from -80° to 400°F maintains sealing effectiveness across diverse operating conditions
- Precise Class 2A thread fit provides consistent engagement and reduces installation issues
- External hex drive design allows for easy installation with standard tools and high torque application
- Full threading ensures maximum grip length and uniform stress distribution
Professional Applications & Engineering Value
This 5/16"-18 UNC hex head screw delivers critical engineering value in applications where fluid containment and pressure integrity are paramount. The combination of 18-8 stainless steel construction and silicone rubber O-ring addresses common failure points in hydraulic systems, pneumatic equipment, and processing machinery where corrosion and pressure fluctuations compromise seal integrity. The coarse UNC threading provides rapid assembly while maintaining Class 2A thread fit precision, reducing the risk of cross-threading in high-volume production environments. Engineered for industrial applications requiring reliable performance under extreme conditions, this fully threaded hex screw ensures consistent clamping force and superior sealing capability where standard fasteners would fail.
Specification Summary & Compliance
This hex head screw features precise Class 2A thread fit according to UNC standards with 5/16"-18 thread size and 1-1/4" length. Manufactured from 18-8 stainless steel with Rockwell B85 hardness and 80,000 psi tensile strength. The silicone rubber O-ring provides sealing capability for maximum hole diameter of 0.336". Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.
