S-97715A531 1/4"-28 x 1/4" Brass Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with brass material, ideal for harsh environments and electrical applications where rust prevention is critical.
• Precise, reliable fastening ensured by Class 3A fine thread fit, reducing the risk of loosening under vibration and providing excellent engagement.
• High tensile strength of 50,000 PSI delivers robust performance for demanding mechanical assemblies, preventing failure under stress.
• Easy installation and removal with 5/32" hex drive, allowing for efficient tool engagement and reducing assembly time.
• Durable and wear-resistant due to Rockwell B55 hardness, maintaining thread integrity and screw head shape through repeated use.
• Fully threaded design offers consistent clamping force along the entire length, enhancing joint stability in various material thicknesses.
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global industry standards for hazardous substances.

Professional Applications & Engineering Value

This 1/4"-28 UNF brass rounded head screw is engineered to address common industrial challenges such as corrosion in marine, chemical, or outdoor settings. The brass material provides excellent conductivity and resistance to galvanic corrosion, making it a top choice for electrical enclosures and plumbing systems. With its Class 3A fine threading and fully threaded design, it ensures tight, secure fits in precision equipment, reducing the need for frequent maintenance. The rounded button head and hex drive facilitate quick installation in confined spaces, while the high tensile strength supports heavy-load applications in machinery and automotive assemblies. Ideal for OEMs and maintenance teams seeking durable, compliant fasteners that enhance product longevity and performance.

Specification Summary & Compliance

This screw adheres to UNF thread standards with a Class 3A thread fit for high precision and fine thread spacing. Dimensions include a 1/4" length, 0.25" thread diameter, and 5/32" hex drive size. It is manufactured to meet RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloy and is REACH (EC 1907/2006) compliant, ensuring adherence to international environmental and safety regulations for industrial components.