S-96877A634 1/4"-20 x 1 1/4" FF-S-92, QQ-P-35, MS51959-84, SAE AMS2700 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments
• Exceptional 70,000 psi tensile strength provides reliable fastening performance under high-stress applications
• Full threading with Class 2A coarse UNC thread fit enables quick installation and secure holding power
• 82° countersink angle with standard flat head profile creates flush surface finishes for streamlined assemblies
• Phillips No. 3 drive design offers familiar, efficient installation with standard tools
• Comprehensive regulatory compliance including RoHS 3 and REACH ensures environmental and safety standards are met
• Multiple military and industrial specifications (Fed. Spec. FF-S-92, QQ-P-35, MS51959-84, SAE AMS2700) guarantee consistent quality and interoperability

Professional Applications & Engineering Value

This 1/4"-20 UNC flat head screw delivers critical engineering solutions where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel construction prevents oxidation in moisture-prone environments, while the 70000 psi tensile strength maintains joint integrity under vibration and load stresses. The fully threaded coarse UNC design with Class 2A fit ensures rapid assembly in production lines and reliable performance in machinery, automotive, and electrical enclosures. The 82° countersink angle provides seamless flush mounting in precision applications, eliminating protrusions that could interfere with moving components or aesthetic requirements. These industrial screws are engineered to solve common fastening challenges including material compatibility, installation efficiency, and long-term durability in demanding operational conditions.

Specification Summary & Compliance

Manufactured to precise dimensional standards including Class 2A thread fit and UNC coarse threading with 1/4"-20 specification. Complies with multiple industrial and military standards: Fed. Spec. FF-S-92, QQ-P-35, MS51959-84, and SAE AMS2700. Meets environmental regulations including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, ensuring restricted substance management and environmental safety in industrial applications.