S-97595A556 2-56 x 3/16" ASME B18.3 Brass Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass construction, ideal for harsh industrial environments
• Precise Class 3A thread fit ensures reliable, vibration-resistant fastening in critical assemblies
• High 50,000 psi tensile strength provides exceptional load-bearing capacity for demanding applications
• Rockwell B55 hardness delivers excellent durability and resistance to wear during installation
• Hex drive design (0.050") allows for secure tool engagement and efficient, slip-free installation
• Standard 82° countersink angle enables flush mounting for clean, professional finishes
• Full compliance with ASME B18.3, RoHS 3, and REACH guarantees regulatory adherence for global industrial use

Professional Applications & Engineering Value

These 2-56 UNC brass flat head screws are engineered to address common industrial challenges where corrosion resistance, precision threading, and reliable performance are critical. The Class 3A thread fit and coarse thread spacing provide superior holding power in soft materials and prevent loosening under vibration, making them ideal for electronics enclosures, machinery panels, and automotive components. The fully threaded design ensures consistent engagement across the entire length, while the hex drive and standard flat head profile facilitate quick, secure installations in confined spaces. Manufactured from durable brass with a Rockwell B55 hardness, these screws maintain integrity in high-stress environments, offering long-term reliability for OEM and MRO applications.

Specification Summary & Compliance

This product meets ASME B18.3 specifications for dimensional accuracy, featuring a Class 3A thread fit with UNC coarse threading and precise 82° countersink angle. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met for industrial and commercial use worldwide.