S-93085A119 4-40 x 1" FF-S-92, QQ-P-35, MS24693-C10, NASM24693, SAE AMS2700 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Superior mechanical strength delivering 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Precise Class 2A thread fit ensuring smooth assembly and consistent engagement in UNC coarse thread applications
• Optimized flush mounting with standard 100° countersink angle and flat head design for seamless surface integration
• Enhanced drive stability through Phillips No. 1 drive system preventing cam-out during high-torque installation
• Full threading along 1" length providing maximum grip and adjustment flexibility in assembled components
• Comprehensive regulatory compliance meeting RoHS 3 and REACH environmental standards for global supply chain integration

Professional Applications & Engineering Value

These 4-40 UNC flat head screws deliver critical performance advantages in precision assembly applications where surface flushness and material integrity are paramount. The passivated 18-8 stainless steel construction provides excellent resistance to oxidation and chemical exposure, making these Phillips drive screws ideal for electronics enclosures, aerospace components, and marine equipment. The combination of 70,000 psi tensile strength with Class 2A thread fit ensures reliable fastening in vibration-prone environments while maintaining dimensional stability. The standardized 100° countersink angle enables perfect flush mounting in precision machined surfaces, eliminating protrusions that could interfere with adjacent components. These fully threaded industrial screws are engineered to maintain clamping force integrity across extended service cycles in demanding mechanical systems.

Specification Summary & Compliance

Manufactured to exacting UNC coarse thread specifications with Class 2A tolerance for precision fit. Complies with multiple industry standards including Fed. Spec. FF-S-92, QQ-P-35, MS24693-C10, NASM24693, and SAE AMS2700. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications and restricted substance management.