S-93465A786 5/16"-18 x 1 1/4" Brass Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with brass material, ideal for harsh environments and reducing maintenance costs.
• High torque capability from the 1/4" hex drive, ensuring secure installation and minimizing tool slippage.
• Exceptional tensile strength of 50,000 psi for reliable load-bearing in demanding applications.
• Precise Class 3A thread fit for tight tolerances and vibration resistance in assembled components.
• Durable Rockwell B55 hardness providing long-lasting performance and reduced wear over time.
• Full thread engagement along the 1-1/4" length for maximum holding power and uniform stress distribution.
• Compliance with RoHS 3 and REACH standards, ensuring safety and environmental responsibility in industrial use.

Professional Applications & Engineering Value

This 5/16"-18 UNC brass socket head cap screw is engineered to address common industrial challenges such as corrosion, vibration loosening, and high-stress demands. The brass construction offers excellent resistance to rust and galvanic corrosion, making it suitable for marine, electrical, and plumbing systems. With a coarse UNC thread and Class 3A fit, it ensures quick assembly and reliable fastening in machinery, automotive, and HVAC applications. The 1/4" hex drive allows for easy installation in confined spaces, while the 50,000 psi tensile strength and Rockwell B55 hardness provide durability against mechanical stresses, reducing downtime and maintenance costs in professional settings.

Specification Summary & Compliance

This screw features a 5/16"-18 UNC coarse thread with Class 3A precision fit for high tolerance and vibration resistance. Dimensions include a 1-1/4" length, 15/32" head diameter, and 1/4" hex drive. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring adherence to environmental and safety regulations for industrial components.