S-97595A575 8-32 x 5/16" ASME B18.3 Brass Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass construction, ideal for harsh environments and long-term reliability.
• Exceptional mechanical strength with a 50000 psi tensile strength and Rockwell B55 hardness for demanding applications.
• Precise and secure fastening ensured by the Class 3A thread fit, minimizing the risk of loosening under vibration.
• Efficient installation with a hex drive (3/32") and standard flat head profile for a flush finish and easy tool access.
• Broad compatibility with UNC coarse threads (8-32) and right-hand direction, suitable for a wide range of standard assemblies.
• Full threading along the 5/16" length provides maximum grip and holding power across the entire fastener.
• Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and regulatory acceptance.

Professional Applications & Engineering Value

This 8-32 UNC flat head brass screw is engineered to address critical challenges in industrial and commercial settings where corrosion resistance, strength, and precision are non-negotiable. The use of brass material inherently resists rust and galvanic corrosion, making it a top choice for electrical components, marine hardware, and plumbing systems exposed to moisture. The Class 3A thread fit and coarse UNC thread form deliver reliable engagement in softer materials or where rapid assembly is required, reducing cross-threading risks. With a 50000 psi tensile strength and fully threaded design, it ensures a robust clamp force and vibration resistance in machinery, automotive, and HVAC applications. The flat head with an 82° countersink allows for a smooth, flush installation, preventing snagging and improving aesthetic finish in visible assemblies.

Specification Summary & Compliance

This screw adheres to precise dimensional standards with a Class 3A thread fit for superior tolerance and a UNC coarse thread (8-32 size). It is manufactured in compliance with ASME B18.3 specifications, ensuring consistency and reliability. The product is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming it is free from hazardous substances and suitable for global industrial and commercial use.