S-92205A238 1/4"-20 x 1 1/4" Sealing Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ensuring long-term reliability in harsh environments
• Exceptional sealing performance with a silicone rubber O-ring that withstands pressures up to 20,000 psi and temperatures from -80° to 400°F
• High tensile strength of 80,000 psi and Rockwell B85 hardness for dependable load-bearing in demanding applications
• Precision Class 2A thread fit and UNC coarse threading for easy installation and secure, vibration-resistant fastening
• Fully threaded design and external hex drive for uniform clamping force and straightforward tool engagement
• Compliance with RoHS 3 and REACH regulations, meeting strict environmental and safety standards for industrial use
• Versatile coarse thread spacing that resists loosening and provides quick assembly in various materials

Professional Applications & Engineering Value

This 1/4"-20 UNC hex head screw is engineered to address critical challenges in industrial sealing and high-pressure environments. The 18-8 Stainless Steel material offers excellent resistance to corrosion and oxidation, making it ideal for outdoor, marine, or chemical-exposed settings. Its integrated silicone rubber O-ring creates a reliable seal against fluids and gases, preventing leaks in hydraulic systems, pumps, and pressurized containers. The coarse UNC thread and Class 2A fit ensure consistent engagement and reduce cross-threading risks, while the external hex drive allows for high-torque installation with common tools. Suitable for machinery, automotive assemblies, and industrial equipment, this screw provides a durable, compliant fastening solution that maintains integrity under extreme operational stresses.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC thread with Class 2A fit for standard dimensional accuracy and reliable assembly. It is fully threaded and designed for a maximum hole diameter of 0.269". Manufactured from 18-8 Stainless Steel with a tensile strength of 80,000 psi and hardness of Rockwell B85, it meets industry standards for durability. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to environmental and safety regulations.