S-96880A250 4-40 x 1" ASME B18.6.3, FF-S-92, QQ-P-416, MS35206-221, NASM35206 Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with cadmium plating, extending service life in demanding industrial environments
• High tensile strength of 60,000 psi ensures reliable, vibration-resistant fastening for critical assemblies
• Precision Class 2A thread fit provides smooth installation and consistent clamping force
• Coarse UNC threading enables quick assembly and reduced cross-threading risk in production lines
• Rockwell B69 hardness offers excellent wear resistance and durability under mechanical stress
• Fully threaded design maximizes grip length and load distribution across the entire fastener
• Phillips No. 1 drive with pan head delivers secure tool engagement and flush surface mounting

Professional Applications & Engineering Value

This 4-40 UNC machine screw combines cadmium-plated steel construction with coarse threading to address common industrial challenges like rapid assembly requirements and corrosion-prone environments. The rounded pan head profile distributes seating pressure evenly while preventing surface damage, making it ideal for electronic enclosures, machinery panels, and automotive components where vibration resistance matters. With fully threaded design maintaining consistent engagement across the entire 1" length, engineers achieve reliable joint integrity in high-cycle applications. The Phillips drive ensures compatibility with standard assembly tools, streamlining manufacturing processes while meeting rigorous industrial screw specifications.

Specification Summary & Compliance

Manufactured to Class 2A thread fit tolerances per UNC standards, this fastener complies with ASME B18.6.3, FF-S-92, QQ-P-416, MS35206-221, and NASM35206 specifications. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to international environmental and safety regulations for industrial components.