S-91251A748 2-64 x 3/8" ASTM A574 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating, extending service life in harsh industrial environments.
• Exceptional tensile strength of 170,000 psi ensures reliable performance under high-stress applications.
• Precise Class 3A thread fit for secure, vibration-resistant assemblies with minimal risk of loosening.
• Fine UNF threads provide enhanced clamping force and improved load distribution in fine-pitch applications.
• Rockwell C37 hardness offers excellent wear resistance and durability for repeated use.
• Compact 5/64" hex drive allows easy installation in confined spaces with standard tools.
• Full threading ensures consistent engagement and adjustability across the entire screw length.

Professional Applications & Engineering Value

These 2-64 UNF socket head cap screws are engineered to address critical challenges in precision assembly and high-vibration environments. The black-oxide alloy steel construction provides reliable corrosion protection, while the fine thread design and Class 3A fit deliver superior resistance to loosening under dynamic loads. Ideal for machinery, automotive components, and electronic enclosures, these screws ensure long-term reliability with their high tensile strength and Rockwell C37 hardness, reducing maintenance needs and downtime in industrial settings.

Specification Summary & Compliance

Manufactured to ASTM A574 specifications, these screws feature precise Class 3A thread fit and UNF fine threads for accurate engagement. They are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial applications.