S-97715A444 5-40 x 1/2" Brass Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with brass construction ideal for harsh industrial environments
• Exceptional thread engagement with Class 3A fit ensuring vibration-resistant, secure fastening
• High mechanical strength with 50,000 PSI tensile strength for demanding applications
• Optimized drive efficiency with 5/64" hex drive preventing cam-out during installation
• Enhanced durability with Rockwell B55 hardness maintaining structural integrity under stress
• Reliable regulatory compliance meeting RoHS 3 and REACH standards for global industrial use
• Versatile coarse threading with UNC pattern enabling quick assembly in various materials

Professional Applications & Engineering Value

These 5-40 UNC brass rounded head screws deliver critical performance advantages in precision assembly applications. The fully threaded coarse UNC pattern combined with Class 3A thread fit provides exceptional resistance to vibrational loosening in machinery, electronics, and automotive components. The brass material offers natural corrosion resistance while the button head profile with hex drive compatibility ensures flush mounting and secure torque application. Engineered with 50,000 PSI tensile strength and Rockwell B55 hardness, these screws maintain clamping force in high-stress environments while the RoHS 3 and REACH compliance ensures suitability for regulated industries including medical devices and aerospace applications.

Specification Summary & Compliance

Manufactured to precise Class 3A thread fit standards with UNC coarse threading (5-40 size) and right-hand thread direction. Features include 0.125" thread diameter, 1/2" length, and fully threaded design. Compliant with RoHS 3 (2015/863/EU) under exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met for industrial distribution.