S-91251A517 10-24 x 5/32" 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 corrosion resistance from the black-oxide finish extends service life in harsh industrial environments, minimizing maintenance and replacement costs.
• Precise Class 3A thread fit provides tighter tolerances for secure fastening, enhancing assembly integrity and vibration resistance.
• High hardness rating (Rockwell C37) offers excellent wear resistance, maintaining thread integrity and durability over repeated use.
• Fully threaded design allows for consistent engagement along the entire length, improving load distribution and clamping force.
• Compliance with ASTM A574, RoHS 3, and REACH ensures material quality and environmental safety, meeting rigorous industry standards for procurement.
• Standard hex drive (5/32") facilitates easy installation and removal with common tools, boosting efficiency in assembly and maintenance tasks.

Professional Applications & Engineering Value

This Black-Oxide Alloy Steel Socket Head Cap Screw with 10-24 UNC coarse threads is engineered to address critical challenges in industrial settings, such as vibration loosening and corrosion-induced degradation. The alloy steel material combined with a black-oxide surface treatment provides robust protection against rust and wear, making it ideal for machinery, automotive, and heavy equipment applications where exposure to moisture and chemicals is common. Its fully threaded and Class 3A fit ensures precise alignment and strong holding power, reducing the need for frequent retightening and enhancing overall system reliability. By integrating high tensile strength and standardized hex drive compatibility, this screw streamlines assembly processes and supports long-term operational stability in demanding engineering projects.

Specification Summary & Compliance

This product adheres to inch measurement system dimensions, including a length of 5/32" and thread size of 10-24 UNC with coarse spacing. It meets Class 3A thread fit for precise tolerances and complies with ASTM A574 specifications for material quality. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are upheld in industrial use.