S-98070A310 8-32 x 1/4" Sealing Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with silicone rubber O-ring that prevents leaks in high-pressure environments up to 20,000 psi
• Exceptional corrosion resistance thanks to 18-8 stainless steel construction and passivated finish for extended service life in harsh conditions
• Wide temperature tolerance from -150° to 500° F, ensuring reliable operation in extreme thermal environments
• High mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for durable, long-lasting fastening
• Precision threading with UNC coarse thread and Class 2A fit for easy installation and secure engagement in various materials
• Streamlined installation featuring Phillips No. 2 drive and standard flat head profile for flush mounting and efficient assembly
• Regulatory compliance meeting RoHS 3 and REACH standards for safe, environmentally conscious industrial use

Professional Applications & Engineering Value

This 8-32 UNC flat head Phillips screw delivers critical sealing solutions in demanding industrial applications where fluid or gas containment is essential. The combination of 18-8 stainless steel material and passivated finish provides excellent corrosion resistance for harsh environments, while the silicone rubber O-ring maintains integrity across extreme temperature ranges from -150° to 500° F. Engineered with UNC coarse threading and Class 2A thread fit, it ensures reliable engagement and vibration resistance in assemblies requiring flush mounting. Ideal for high-pressure systems, hydraulic equipment, and industrial machinery where sealing reliability and chemical resistance are paramount, this fastener solves leakage issues while withstanding operational stresses up to 20,000 psi.

Specification Summary & Compliance

This sealing screw features precision 8-32 UNC coarse threads with Class 2A thread fit for consistent engagement and assembly efficiency. The manufacturing adheres to standard dimensional specifications including 1/4" length, 100° countersink angle, and 0.179" maximum hole diameter. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and restricted substance management for industrial applications worldwide.