S-91251A899 10-24 x 6" 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.
• Class 3A thread fit provides superior precision and tighter tolerances for secure, vibration-resistant assemblies in demanding applications.
• Black-oxide coating on alloy steel offers enhanced corrosion resistance, extending service life in harsh industrial environments.
• Partially threaded design allows for precise clamping force control and easier alignment in assembled components.
• Hex socket drive (5/32") enables high-torque installation with standard tools, minimizing stripping and improving installation efficiency.
• Rockwell C37 hardness ensures excellent durability and wear resistance, maintaining thread integrity through repeated use.
• Compliance with ASTM A574, RoHS 3, and REACH guarantees material consistency and environmental safety for global industrial standards.

Professional Applications & Engineering Value

These 10-24 UNC socket head cap screws are engineered to address critical challenges in industrial fastening where precision and strength are paramount. The black-oxide alloy steel construction provides reliable corrosion protection, making them ideal for machinery, automotive, and heavy equipment applications exposed to moisture or chemicals. The coarse UNC thread and Class 3A fit ensure quick assembly with minimal cross-threading risks, while the partially threaded shank concentrates clamping force precisely where needed. This design reduces stress concentration points, enhancing joint integrity in high-tensile strength scenarios up to 170,000 psi. With a standard hex drive, these screws facilitate efficient installation in confined spaces, streamlining maintenance and production workflows without compromising on ASTM A574 quality standards.

Specification Summary & Compliance

This socket head cap screw features a 10-24 UNC coarse thread with Class 3A thread fit for high precision, a partially threaded rod configuration, and dimensions including 6" length and 5/16" head diameter. Manufacturing adheres to ASTM A574 specifications, ensuring consistent material and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally regulated and industrial applications worldwide.