S-97715A519 1/4"-20 x 7/16" Brass Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass construction, ideal for harsh industrial environments and outdoor applications.
• Exceptional thread reliability with a Class 3A fit, ensuring tight, secure, and vibration-resistant connections.
• High mechanical strength with a 50,000 psi tensile strength and Rockwell B55 hardness for demanding load-bearing applications.
• Efficient installation and removal using the 5/32" hex drive, providing a secure grip and reducing tool slippage.
• Optimized for coarse threading (UNC) in the 1/4"-20 size, enabling faster assembly and better performance in softer materials.
• Low-profile, rounded button head design minimizes snagging and provides a finished appearance while distributing clamp load effectively.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for regulated industries.

Professional Applications & Engineering Value

This 1/4"-20 UNC brass rounded button head screw is engineered to solve critical challenges in machinery assembly, electrical enclosures, and marine hardware. The brass material offers inherent corrosion resistance, preventing failure in humid or chemically aggressive settings. Its Class 3A thread fit and coarse UNC threading provide superior holding power and rapid installation, reducing assembly time and improving productivity. The fully threaded design ensures consistent engagement along the entire 7/16" length, while the hex drive allows for high-torque application without cam-out. Ideal for applications requiring a combination of durability, electrical conductivity, and regulatory compliance, this screw delivers long-term reliability in OEM and MRO contexts.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC coarse thread with a precision Class 3A thread fit for consistent, high-tolerance fastening. Manufacturing adheres to standard dimensional requirements for rounded button head screws, including a head diameter of 0.437" and a length of 7/16". The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006) regarding SVHCs as of 01/17/2023, ensuring it meets stringent environmental and safety standards for industrial use.