S-92210A086 2-56 x 7/8" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
• Exceptional tensile strength of 70,000 psi provides reliable fastening under high-stress conditions, reducing the risk of mechanical failure.
• Precise Class 3A thread fit ensures smooth installation and secure, vibration-resistant connections in demanding assemblies.
• Fully threaded design offers maximum grip and holding power along the entire 7/8" length for versatile applications.
• Hex drive (0.050") and standard flat head enable easy installation with common tools and a flush finish for streamlined surfaces.
• Compliance with ASME B18.3, RoHS 3, and REACH guarantees adherence to industry standards and environmental safety regulations.
• 82° countersink angle and coarse UNC threading facilitate quick alignment and robust performance in various materials.

Professional Applications & Engineering Value

Engineered for precision and durability, these 2-56 UNC flat head screws are ideal for industrial applications where corrosion resistance and high strength are critical. The 18-8 stainless steel material, combined with a passivated finish, effectively counters moisture and chemical exposure, extending service life in machinery, electronics, and outdoor equipment. The Class 3A thread fit and coarse thread spacing ensure reliable engagement in metals and plastics, minimizing loosening from vibrations. With a hex drive and standard flat head profile, they allow for efficient installation in confined spaces, supporting assembly lines and maintenance tasks that demand both speed and compliance with ASME B18.3 standards.

Specification Summary & Compliance

This product features precise dimensions including a Class 3A thread fit per UNC standards, ensuring tight tolerances for secure fastening. It meets ASME B18.3 specifications for consistency and performance, and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility. The screw's fully threaded design and 82° countersink angle adhere to industrial norms, providing reliable integration in various engineering contexts.