S-97715A610 1/2"-20 x 3/4" Brass Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with brass construction, ideal for harsh environments and moisture-prone applications
• Exceptional thread precision with Class 3A fit ensures reliable, vibration-resistant connections in critical assemblies
• High tensile strength of 50,000 psi provides dependable load-bearing capacity for demanding mechanical applications
• Rockwell B55 hardness offers excellent durability and wear resistance for extended service life
• Secure and efficient installation with 5/16" hex drive, preventing cam-out and enabling high torque application
• Full environmental compliance with RoHS 3 and REACH standards, meeting international regulatory requirements
• Fine UNF threading delivers superior holding power and precise adjustment capabilities

Professional Applications & Engineering Value

This brass rounded head screw with 1/2"-20 UNF fine threading and Class 3A precision addresses critical engineering challenges in corrosive environments. The brass material provides inherent corrosion resistance without additional plating, making it ideal for marine equipment, plumbing systems, and electrical enclosures where galvanic corrosion is a concern. The rounded button head design offers a low-profile finish that reduces snagging hazards while the 5/16" hex drive ensures positive engagement during installation, preventing stripping in soft materials. With 50,000 psi tensile strength and Rockwell B55 hardness, this fastener maintains structural integrity in vibration-intensive applications such as pump assemblies, valve connections, and precision instrumentation where fine thread accuracy is paramount for pressure-tight seals and precise mechanical adjustments.

Specification Summary & Compliance

This 1/2"-20 UNF brass screw features Class 3A thread fit for precision applications with tight tolerances. The inch-system fastener measures 3/4" in length with 0.5" thread diameter and standard rounded head profile. Manufacturing complies with environmental regulations including RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006) compliance. The fully threaded design and fine thread spacing ensure optimal engagement in various material thicknesses while maintaining the mechanical properties specified for brass fasteners.