S-93085A110 4-40 x 1/2" FF-S-92, QQ-P-35, MS24693-C6, NASM24693, 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, ideal for harsh industrial and aerospace 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 assembly and secure fastening in UNC coarse thread applications
- Full threading design provides maximum grip and uniform stress distribution along the entire 1/2" length
- Standard 100° countersink angle enables flush mounting for clean, professional finishes
- Phillips No. 1 drive compatibility offers familiar, efficient installation with standard tools
- Comprehensive regulatory compliance including RoHS 3 and REACH for global market acceptance
Professional Applications & Engineering Value
These 4-40 UNC flat head screws deliver critical engineering solutions where corrosion resistance, precision threading, and regulatory compliance intersect. The passivated 18-8 stainless steel construction provides exceptional protection against oxidation and chemical exposure, making them ideal for aerospace assemblies, industrial machinery, and marine equipment. The Class 2A thread fit combined with UNC coarse threading ensures rapid installation and vibration resistance in high-stress applications. With full threading along the entire 1/2" length, these flat head Phillips screws distribute clamping forces evenly, preventing joint failure in critical assemblies. Their compliance with multiple military and aerospace specifications makes them the preferred choice for OEMs requiring documented material traceability and performance verification.
Specification Summary & Compliance
This 4-40 UNC machine screw features precise Class 2A thread fit tolerances with fully threaded design and standard 100° countersink angle. Manufactured to meet stringent specifications including Fed. Spec. FF-S-92, QQ-P-35, MS24693-C6, NASM24693, and SAE AMS2700. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global industrial and aerospace applications.
