S-93085A113 4-40 x 3/4" FF-S-92, QQ-P-35, MS24693-C8, NASM24693, SAE AMS2700 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction for extended service life in harsh environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness to withstand high-stress applications
• Precise thread engagement through Class 2A thread fit and UNC coarse threading for reliable fastening performance
• Optimized flush mounting with standard 100° countersink angle and flat head design for seamless surface integration
• Broad regulatory compliance meeting Fed. Spec. FF-S-92, MS24693-C8, NASM24693, RoHS 3, and REACH standards
• Enhanced installation efficiency with Phillips No. 1 drive for secure tool engagement and reduced cam-out risk
• Full-threaded design providing maximum grip length and uniform load distribution across the entire fastener

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 4-40 UNC flat head screws deliver critical performance advantages where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel construction provides exceptional protection against oxidation and chemical degradation, making them ideal for aerospace components, electronic enclosures, and marine equipment. The coarse UNC threading ensures rapid installation and superior holding power in various substrates, while the 100° countersink angle creates a flush surface finish that eliminates protrusions in precision assemblies. These Phillips drive flat head screws solve common fastening challenges by combining high tensile strength with consistent dimensional accuracy, reducing installation time and maintenance requirements across manufacturing, automotive, and defense applications.

Specification Summary & Compliance

This 3/4" length fastener maintains Class 2A thread fit tolerance with UNC coarse threading (4-40) and right-hand thread direction. Manufacturing complies with Fed. Spec. FF-S-92, QQ-P-35, MS24693-C8, NASM24693, and SAE AMS2700 specifications. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental regulatory adherence for global industrial distribution.