S-93085A542 1/4"-20 x 1" FF-S-92, QQ-P-35, MS24693-C98, NASM24693, SAE AMS2700 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Precise Class 2A thread fit ensures smooth installation and secure fastening in demanding applications
• Versatile compatibility with UNC coarse threading and standard 100° countersink angle for flush mounting
• Comprehensive regulatory compliance including RoHS 3 and REACH, meeting global environmental standards
• Industry-proven reliability through compliance with multiple specifications including Fed. Spec. FF-S-92 and MS24693-C98
• Full threading design provides maximum grip length and uniform stress distribution along the entire fastener

Professional Applications & Engineering Value

This 1/4"-20 flat head Phillips machine screw delivers critical engineering advantages for industrial assembly applications where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel construction provides exceptional protection against oxidation and chemical exposure, making it ideal for marine, chemical processing, and outdoor equipment applications. The UNC coarse threading combined with Class 2A thread fit ensures rapid installation and secure fastening in various materials, while the flat head design with standard 100° countersink angle allows for flush mounting in precision assemblies. With full threading and high tensile strength, this fastener maintains joint integrity under vibration and dynamic loading conditions, solving common failure points in machinery and structural applications.

Specification Summary & Compliance

This flat head screw features precision UNC 1/4"-20 coarse threads with Class 2A thread fit tolerance for consistent performance. Manufacturing complies with Fed. Spec. FF-S-92, QQ-P-35, MS24693-C98, NASM24693, and SAE AMS2700 specifications. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting the latest environmental regulations for industrial components.