S-96877A741 1/4"-28 x 5/8" FF-S-92, QQ-P-35, MS51960-83, SAE AMS2700 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from passivated 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
• High tensile strength of 70,000 psi provides exceptional load-bearing capacity and resistance to mechanical failure.
• Precision Class 2A thread fit ensures smooth installation and secure fastening with minimal risk of cross-threading.
• Fully threaded design maximizes grip and distribution of clamping force along the entire length.
• 82° countersink angle allows for a flush, professional finish that reduces snagging and improves aesthetics.
• Phillips No. 3 drive offers efficient torque transfer and widespread compatibility with common tools.
• Compliance with multiple industry standards guarantees consistent quality and interoperability in regulated applications.

Professional Applications & Engineering Value

This 1/4"-28 UNF flat head Phillips screw is engineered to address critical fastening challenges in demanding industrial settings. The passivated 18-8 stainless steel material provides excellent resistance to oxidation and chemical exposure, making it ideal for marine, chemical processing, and outdoor equipment where corrosion resistance is paramount. The fine UNF thread and Class 2A fit deliver superior vibration resistance and holding power in precision assemblies, from machinery frames to electronic enclosures. Its fully threaded design ensures uniform stress distribution, reducing the risk of joint loosening under dynamic loads. The flat head with 82° countersink creates a smooth, recessed finish that enhances safety and airflow in aerodynamic or consumer-facing products.

Specification Summary & Compliance

This screw features a 1/4"-28 UNF fine thread with Class 2A tolerance for precise fit, and is manufactured in compliance with Fed. Spec. FF-S-92, QQ-P-35, MS51960-83, and SAE AMS2700. It is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring adherence to environmental and safety regulations for global industrial use.