S-96877A729 1/4"-20 x 1 3/4" FF-S-92, QQ-P-35, MS51959-86, SAE AMS2700 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments and extended service life.
• High tensile strength of 70,000 psi ensures reliable fastening under significant load and stress, reducing the risk of mechanical failure.
• Full threading along the 1 3/4" length provides maximum grip and engagement in pre-tapped holes for secure, vibration-resistant assemblies.
• Standard 82° countersink angle and flat head design allows for a flush, clean finish that eliminates protrusions and improves safety.
• Class 2A thread fit with UNC coarse threading offers easy installation and removal while maintaining precise dimensional accuracy.
• Phillips No. 3 drive ensures common tool compatibility and efficient torque application during high-volume assembly operations.
• Compliance with major industrial standards including Fed. Spec. FF-S-92 and SAE AMS2700 guarantees consistent quality and interchangeability.

Professional Applications & Engineering Value

This 1/4"-20 UNC Flat Head Phillips screw is engineered to address common industrial challenges such as component loosening due to vibration and corrosion-induced degradation. The passivated 18-8 stainless steel material provides excellent resistance to oxidation and chemical exposure, making it suitable for demanding applications in machinery, automotive assemblies, and outdoor equipment. The coarse UNC thread and fully threaded design ensure rapid installation and robust holding power in metal and plastic substrates, reducing assembly time and maintenance needs. Its flat head profile with an 82° countersink seamlessly integrates into surfaces, preventing snagging and enhancing the aerodynamic or aesthetic finish of the final product. These features make it a reliable choice for engineers seeking durability, compliance, and efficiency in industrial screw applications.

Specification Summary & Compliance

The screw adheres to Class 2A thread fit tolerances and UNC coarse thread standards, ensuring dimensional precision and compatibility. It meets stringent specifications including Fed. Spec. FF-S-92, QQ-P-35, MS51959-86, and SAE AMS2700 for material and manufacturing consistency. Additionally, the product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, supporting environmental and safety regulations in global supply chains.