S-96877A771 1/4"-28 x 1 5/8" FF-S-92, QQ-P-35, MS24693-C303, 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 environments
- Exceptional tensile strength of 70,000 PSI ensures reliable, long-lasting fastening under high-stress conditions
- Fine UNF threading with Class 2A fit provides precise engagement and vibration resistance in critical assemblies
- Full threading along the 1 5/8" length offers maximum grip and load distribution across the entire fastener
- Standard flat head with 100° countersink enables flush mounting for clean, aerodynamic, and safe surface finishes
- Phillips No. 3 drive design allows for efficient installation with common tools, reducing assembly time
- Compliance with multiple industry standards including Fed. Spec. FF-S-92 and MS24693-C303 guarantees consistent quality and interoperability
Professional Applications & Engineering Value
These 1/4-28 UNF flat head screws are engineered to address common industrial challenges such as corrosion-induced failure and vibration loosening. The passivated 18-8 stainless steel provides excellent resistance to moisture, chemicals, and oxidation, making them suitable for marine, automotive, and outdoor equipment applications. The fine UNF threading and Class 2A thread fit ensure tight tolerances and secure fastening in dynamic environments, while the flat head profile with a 100° countersink angle allows for seamless integration into assemblies where protrusions are unacceptable. Ideal for machinery, electronic enclosures, and structural frameworks, these screws deliver reliable performance where durability and precision are paramount.
Specification Summary & Compliance
This fastener features a 1/4"-28 UNF fine thread with Class 2A thread fit for precise dimensional accuracy, manufactured in accordance with Fed. Spec. FF-S-92, QQ-P-35, MS24693-C303, and NASM24693. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for global industrial use.
