S-92423A419 2-56 x 3/8" FF-S-86, NAS1352N02-6, SAE AMS5737 High-Strength A286 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional Strength-to-Weight Ratio: With a tensile strength of 160,000 psi and yield strength of 120,000 psi, this screw provides reliable performance in high-stress applications, reducing the risk of fastener failure.
• Superior Corrosion Resistance: Made from A286 Stainless Steel with a passivated finish, it offers enhanced durability against harsh environments, extending service life and minimizing maintenance.
• Precise Thread Engagement: Class 3A thread fit ensures tight, secure connections with minimal backlash, ideal for assemblies requiring vibration resistance and repeatable accuracy.
• Easy Installation and Removal: The 5/64" hex drive socket head allows for efficient torque application with standard tools, speeding up assembly and reducing labor time.
• Full Thread Coverage for Versatile Fastening: Fully threaded design enables adjustable clamping along the entire 3/8" length, providing flexibility in various mounting scenarios.
• Compliance with Rigorous Standards: Meets Fed. Spec. FF-S-86 (NAS1352N02-6) and SAE AMS5737, ensuring consistency and reliability for critical aerospace and industrial applications.
• Environmental and Regulatory Safety: RoHS 3 and REACH compliant, making it suitable for global supply chains with strict substance restrictions.

Professional Applications & Engineering Value

This 2-56 thread socket head cap screw in A286 stainless steel is engineered to address common industrial challenges such as thermal expansion, mechanical stress, and corrosive exposure. The passivated finish enhances surface integrity, preventing galling and seizing in high-temperature or chemically aggressive environments. Its coarse thread spacing and Class 3A thread fit provide superior grip in materials prone to stripping, while the fully threaded rod design allows for precise adjustment in confined spaces. Ideal for aerospace, automotive, and heavy machinery, this fastener ensures long-term reliability by combining high tensile strength with excellent fatigue resistance, reducing downtime and replacement costs.

Specification Summary & Compliance

The screw features a 2-56 UNRC right-hand thread with Class 3A precision tolerance, ensuring consistent performance in demanding assemblies. It complies with Fed. Spec. FF-S-86 (NAS1352N02-6) and SAE AMS5737 manufacturing standards, guaranteeing material and dimensional accuracy. Additionally, it is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, adhering to environmental regulations for safe use in various industries.