S-92205A511 1/4"-20 x 1/4" Sealing Hex Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with silicone rubber O-ring that maintains integrity across extreme temperatures from -80° to 400°F
• Exceptional pressure resistance capable of withstanding up to 20,000 psi for demanding industrial applications
• High tensile strength construction rated at 80,000 psi for reliable performance in heavy-duty fastening scenarios
• Excellent corrosion resistance provided by 18-8 stainless steel material with Rockwell B85 hardness
• Precision threading with Class 2A fit and UNC coarse thread pattern for easy installation and secure fastening
• Full threading design ensures maximum engagement and holding power throughout the entire screw length
• Compliance assurance with RoHS 3 and REACH regulations for environmentally responsible manufacturing

Professional Applications & Engineering Value

This 1/4"-20 UNC hex head screw delivers critical sealing solutions for industrial equipment operating under extreme conditions. The combination of 18-8 stainless steel construction and silicone rubber O-ring addresses common failure points in high-pressure systems, preventing leaks in hydraulic, pneumatic, and fluid handling applications. The external hex drive provides superior torque transmission during installation, while the coarse thread design ensures reliable performance in vibration-prone environments. Engineered for industrial fasteners requiring both mechanical strength and environmental sealing, this screw maintains its integrity across a wide temperature range from cryogenic to high-heat scenarios, making it ideal for oil and gas, chemical processing, and heavy machinery applications where pressure ratings up to 20,000 psi are critical.

Specification Summary & Compliance

This hex head screw features precision 1/4"-20 UNC threads with Class 2A thread fit tolerance for consistent performance. Manufactured from 18-8 stainless steel with full threading and right-hand orientation. The assembly includes a silicone rubber O-ring rated for -80° to 400°F temperature range. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring adherence to international standards for industrial components.