S-93085A122 4-40 x 1 1/8" FF-S-92, QQ-P-35, MS24693-C11, 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 performance under high-stress applications
- Precise Class 2A thread fit guarantees smooth installation and secure fastening in UNC coarse threads
- Optimized Phillips drive design (No. 1 size) provides efficient torque transfer and reduces cam-out risk
- 100° countersink angle and flat head profile enable flush mounting for clean, aerodynamic surfaces
- Full threading along the 1-1/8" length offers maximum grip and adjustment flexibility
- Comprehensive compliance with major industrial and environmental standards for guaranteed quality and safety
Professional Applications & Engineering Value
Engineered for demanding applications, these 4-40 UNC flat head screws in passivated 18-8 stainless steel deliver critical resistance to corrosion, oxidation, and chemical exposure, making them ideal for aerospace, electronics, and marine equipment. The Phillips drive and Class 2A thread fit ensure quick, reliable assembly with reduced tool slippage, while the coarse thread spacing enhances engagement in softer materials or vibration-prone settings. With a Rockwell B70 hardness and 70,000 psi tensile strength, these screws maintain integrity under mechanical stress, and the 100° countersink angle allows for seamless integration into precision components, minimizing protrusion and improving airflow or aesthetics in finished products.
Specification Summary & Compliance
This screw adheres to Class 2A thread fit tolerances and UNC coarse thread standards, with manufacturing conforming to Fed. Spec. FF-S-92, QQ-P-35, MS24693-C11, NASM24693, and SAE AMS2700. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and sustainable use across global industrial sectors.
