S-91251A088 10-24 x 4" ASTM A574 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
• Superior corrosion resistance from the black-oxide finish on alloy steel extends service life in harsh environments, minimizing maintenance needs.
• Precise Class 3A thread fit provides secure, vibration-resistant connections, enhancing assembly integrity and reducing loosening over time.
• High hardness (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated use and installation.
• Standard hex drive (5/32") allows for easy installation and removal with common tools, speeding up assembly processes.
• Partially threaded design enables optimal clamping force control, ideal for applications requiring precise joint compression.
• Compliance with ASTM A574, RoHS 3, and REACH ensures adherence to industry standards and environmental regulations, supporting global supply chain requirements.

Professional Applications & Engineering Value

This 10-24 UNC thread socket head cap screw is engineered to address critical challenges in heavy-duty machinery, automotive assemblies, and industrial equipment. The black-oxide alloy steel construction provides enhanced corrosion resistance, crucial for environments exposed to moisture or chemicals, while the coarse thread spacing and Class 3A fit ensure rapid installation and reliable holding power in high-vibration settings. With a 4" length and partially threaded rod, it offers versatility for applications requiring precise clamping, such as securing structural components or mounting brackets. The combination of 170,000 psi tensile strength and Rockwell C37 hardness delivers durability under dynamic loads, reducing downtime and maintenance costs in demanding operations.

Specification Summary & Compliance

This screw features a 10-24 UNC coarse thread with Class 3A thread fit for precise dimensional accuracy, ensuring consistent performance. It meets ASTM A574 specifications for high-strength alloy steel socket head cap screws, and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial use without hazardous substances.