S-91251A897 10-24 x 5" 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.
• Corrosion-resistant black-oxide finish on alloy steel provides enhanced durability and protection against rust, extending service life in harsh industrial environments.
• Precise Class 3A thread fit guarantees secure, vibration-resistant connections, minimizing loosening and maintaining assembly integrity over time.
• 5/32" hex drive socket head allows for easy installation and high torque application in confined spaces, improving assembly efficiency.
• Partially threaded 5" length design offers optimal grip and clamping force control, ideal for applications requiring precise unthreaded shank sections.
• 10-24 UNC coarse threads enable quick assembly and disassembly, reducing labor time while providing strong holding power.
• Rockwell C37 hardness ensures superior wear resistance and durability, maintaining performance through repeated use cycles.

Professional Applications & Engineering Value

This black-oxide alloy steel socket head cap screw delivers critical engineering solutions for industrial applications where strength, precision, and corrosion resistance are paramount. The 10-24 UNC coarse thread configuration combined with Class 3A thread fit ensures vibration-resistant fastening in machinery, automotive assemblies, and heavy equipment. The partially threaded design provides precise clamping control while the 5/32" hex drive enables efficient installation in space-constrained environments. Manufactured from high-grade alloy steel with black-oxide surface treatment, these screws withstand harsh operating conditions while maintaining their mechanical properties, making them ideal for applications requiring reliable, long-lasting fastening solutions.

Specification Summary & Compliance

This socket head cap screw features precision 10-24 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy. The fastener meets ASTM A574 manufacturing specifications and demonstrates compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. With a 5" length and partially threaded configuration, it maintains strict inch system tolerances throughout production, ensuring consistent performance and regulatory adherence for industrial applications.