S-93085A612 4-40 x 1/4" FF-S-92, QQ-P-35, MS24693-2B, 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
- Exceptional corrosion resistance with Black-Oxide 18-8 Stainless Steel, ideal for harsh industrial environments
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
- Rockwell B70 hardness provides superior durability and resistance to wear over time
- Fully threaded coarse UNC design offers faster installation and secure holding power in various materials
- Class 2A thread fit guarantees consistent, precise engagement for reduced assembly errors
- Standard 100° flat head profile allows for flush mounting, minimizing protrusion in tight spaces
- Compliance with multiple industry standards ensures quality and reliability for critical applications
Professional Applications & Engineering Value
These 4-40 UNC flat head Phillips screws are engineered to address common industrial challenges such as corrosion, mechanical stress, and assembly efficiency. The Black-Oxide 18-8 Stainless Steel construction provides excellent resistance to rust and oxidation, making them suitable for outdoor equipment, marine hardware, and electronic enclosures. The coarse thread and fully threaded design enhance grip and speed up installation in plastics, sheet metal, and soft alloys, reducing labor time. With a 100° countersink angle, they sit flush to prevent snagging and improve aerodynamics in automotive or aerospace components. Their high tensile strength and hardness ensure long-term reliability in vibrating environments, supporting maintenance-free operation in machinery and structural assemblies.
Specification Summary & Compliance
This product features precise Class 2A thread fit per UNC standards, ensuring dimensional accuracy for consistent performance. It complies with specifications including Fed. Spec. FF-S-92, QQ-P-35, MS24693-2B, NASM24693, and SAE AMS2700, and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for safe, sustainable use in global markets.
