S-90825A615 4-40 x 3/8" Sealing Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Reliable high-pressure sealing with silicone rubber O-ring maintaining integrity up to 6000 psi
• Superior corrosion resistance through 18-8 stainless steel construction and passivated surface treatment
• Broad temperature compatibility with O-ring performing from -80° to 400° F in demanding environments
• Precise thread engagement via UNC coarse threads with Class 2A fit for secure fastening
• Easy installation and removal using standardized Phillips No. 1 drive configuration
• Full thread coverage along the 3/8" length for maximum grip and load distribution
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial use

Professional Applications & Engineering Value

These 4-40 UNC sealing screws address critical leakage and corrosion challenges in high-pressure industrial systems. The combination of 18-8 stainless steel material and passivated finish provides exceptional resistance to chemical exposure and environmental degradation, while the silicone rubber O-ring creates a reliable seal that maintains performance across extreme temperature fluctuations from -80° to 400° F. The rounded pan head design with Phillips drive enables quick installation in confined spaces, making these sealing screws ideal for hydraulic components, pneumatic equipment, and fluid handling systems where pressure integrity up to 6000 psi is mandatory.

Specification Summary & Compliance

Manufactured to precise dimensional standards with UNC coarse threads maintaining Class 2A thread fit for consistent engagement. The 3/8" length features full threading for maximum holding power. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material transparency for industrial procurement requirements.