S-92210A406 2-56 x 7/16" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Superior thread engagement and vibration resistance due to Class 3A thread fit and UNC coarse threading
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and stress conditions
• Precision hex drive (0.050") provides secure tool engagement and reduces stripping during installation
• Standard 82° countersink angle allows for flush mounting in various applications
• Full threading along the 7/16" length maximizes grip and holding power in assembled components
• Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH for guaranteed quality and safety

Professional Applications & Engineering Value

These 2-56 UNC flat head screws in 18-8 stainless steel with a passivated finish are engineered to address common industrial challenges such as corrosion, vibration loosening, and high-stress demands. The Class 3A thread fit and coarse UNC threading ensure tight, secure fastening in machinery, electronics, and automotive assemblies, reducing maintenance needs. The flat head design with an 82° countersink allows for smooth, flush surfaces, preventing snagging and improving aesthetics. With a tensile strength of 70,000 psi and Rockwell B55 hardness, they provide long-term reliability in demanding applications, from precision equipment to structural frameworks.

Specification Summary & Compliance

This screw features precise Class 3A thread fit per UNC standards, ensuring dimensional accuracy and compatibility. Manufacturing adheres to ASME B18.3 specifications, with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and material integrity for industrial use.