S-93465A107 4-40 x 5/16" Brass Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from brass construction, ideal for harsh environments and electrical applications
• High-strength performance with 50,000 psi tensile strength for reliable load-bearing in demanding assemblies
• Precise Class 3A thread fit ensures secure, vibration-resistant fastening with minimal risk of loosening
• Durable Rockwell B55 hardness provides excellent wear resistance and long-term mechanical integrity
• Secure hex drive engagement with 3/32" drive size for efficient installation and high torque application
• Full threading design offers consistent grip along the entire 5/16" length for uniform clamping force
• Regulatory compliance with RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

Engineered for precision assemblies requiring both electrical conductivity and corrosion resistance, these brass socket head cap screws with 4-40 UNC coarse threading solve critical challenges in electronics, marine, and instrumentation applications. The Class 3A thread fit maintains tight tolerances in vibration-prone environments, while the right-hand coarse thread spacing enables rapid installation without compromising joint integrity. The combination of 50,000 psi tensile strength and Rockwell B55 hardness ensures these fasteners withstand mechanical stress while the 3/32" hex drive provides reliable torque transmission during assembly. Ideal for industrial brass fasteners where galvanic compatibility and regulatory compliance are essential.

Specification Summary & Compliance

This socket head cap screw features precision 4-40 UNC coarse threads with Class 3A fit per ASME B1.1 standards, ensuring dimensional accuracy and interchangeability. Manufactured in inch system measurements with 5/16" length and fully threaded design. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for restricted substance control.