S-96877A199 4-40 x 7/16" FF-S-92, QQ-P-35, MS51959-16, SAE AMS2700 Stainless Steel Phillips Flat Head Screws
Stainless Steel Phillips Flat Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with passivated 18-8 stainless steel construction for extended service life in harsh environments
- High tensile strength of 70,000 psi ensures reliable fastening performance under substantial mechanical stress
- Precision Class 2A thread fit guarantees consistent engagement and vibration resistance in assembly applications
- 82° countersink angle provides flush mounting capability for streamlined surfaces and improved aerodynamics
- Fully threaded design offers maximum grip length and load distribution across the entire fastener
- Phillips drive compatibility enables efficient installation with standard industrial tools
- Comprehensive regulatory compliance including RoHS 3 and REACH ensures environmental and safety standards are met
Professional Applications & Engineering Value
This 4-40 UNC flat head screw delivers exceptional engineering value through its passivated 18-8 stainless steel composition, providing critical corrosion resistance in moisture-prone industrial environments. The coarse UNC thread pattern ensures rapid assembly and superior holding power in materials where fine threads might strip. With its 82° countersink angle and flat head profile, it creates seamless surface transitions ideal for aerospace panels, electronic enclosures, and machinery where protrusions cause interference. The fully threaded configuration maximizes thread engagement in thin materials, while the Phillips drive accommodates high-torque installation without cam-out issues. Meeting stringent Fed. Spec. FF-S-92 and SAE AMS2700 standards, this fastener solves vibration-induced loosening problems in dynamic applications.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with UNC coarse threading (4-40 size) and right-hand thread direction. Complies with Fed. Spec. FF-S-92, QQ-P-35, MS51959-16, and SAE AMS2700 manufacturing specifications. Fully certified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant for restricted substance management. The 7/16" length and standard flat head profile maintain dimensional consistency across production batches.
