S-91251A242 10-24 x 1/2" ASTM A574 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Superior hardness (Rockwell C37) provides excellent wear resistance and durability, extending the service life of the screw in industrial environments.
• Black-oxide coating on alloy steel offers enhanced corrosion resistance, protecting the screw from rust and degradation in various operating conditions.
• Precise Class 3A thread fit guarantees tight, secure fastening with minimal play, improving assembly accuracy and joint integrity.
• Fully threaded design with 10-24 UNRC coarse thread allows for deep engagement and quick installation, saving time in high-volume production settings.
• 5/32" hex drive socket head enables easy installation and removal with standard tools, reducing assembly effort and minimizing tool slippage.
• Compliance with ASTM A574, RoHS 3, and REACH ensures adherence to industry standards and environmental regulations, providing peace of mind for global sourcing and use.

Professional Applications & Engineering Value

These socket head cap screws are engineered to address critical challenges in industrial and mechanical assemblies where high tensile strength and durability are paramount. The black-oxide alloy steel construction combats corrosion and wear, making them ideal for machinery, automotive, and aerospace applications exposed to harsh conditions. With a 10-24 coarse UNRC thread and Class 3A fit, they provide secure, vibration-resistant connections that maintain integrity under dynamic loads. The fully threaded design ensures maximum grip in tapped holes or nuts, while the hex drive simplifies maintenance and disassembly. By meeting ASTM A574 specifications, these screws deliver consistent performance, reducing downtime and enhancing reliability in precision engineering projects.

Specification Summary & Compliance

This screw features a 10-24 thread size with coarse spacing and Class 3A thread fit, ensuring precise dimensional accuracy per UNRC standards. It is manufactured in compliance with ASTM A574 for high-strength alloy steel fasteners, and adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and suitability for global industrial use.