S-92205A540 1/4"-20 x 3/4" 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 O-rings that withstand extreme temperatures from -80° to 400°F
- Exceptional pressure resistance up to 20,000 psi for demanding hydraulic and pneumatic applications
- High tensile strength of 80,000 psi ensures reliable fastening in heavy-duty industrial environments
- Corrosion-resistant 18-8 stainless steel construction provides long-lasting durability in harsh conditions
- Precision UNC Class 2A threads ensure consistent, reliable engagement and easy installation
- External hex drive design allows for high torque application and secure fastening
- Environmental compliance with RoHS 3 and REACH regulations for safe, sustainable operations
Professional Applications & Engineering Value
These 18-8 stainless steel hex head screws with integrated silicone O-rings solve critical sealing challenges in industrial applications where pressure integrity and environmental resistance are paramount. The combination of UNC coarse threading and Class 2A fit ensures rapid installation while maintaining sealing effectiveness against fluids and gases. Engineered for high-pressure environments up to 20,000 psi, these fully threaded screws provide uniform clamping force across the entire fastener length, making them ideal for hydraulic systems, pneumatic equipment, and processing machinery where vibration resistance and leak prevention are critical. The external hex drive accommodates standard tools for efficient maintenance and assembly operations.
Specification Summary & Compliance
This 1/4"-20 x 3/4" hex head screw features precision UNC Class 2A thread fit with coarse spacing for reliable engagement. Manufactured from 18-8 stainless steel with Rockwell B85 hardness and 80,000 psi tensile strength. The silicone O-ring provides effective sealing for maximum hole diameter of 0.269". Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and sustainable operation in industrial applications.
