S-92220A264 1/2"-13 x 1 3/4" ASTM A574 Alloy Steel Low-Profile Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 140,000 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.
• Low-profile socket head with 1/4" hex drive allows for easy installation in confined spaces and provides a sleek, flush finish.
• Fully threaded 1/2"-13 UNC coarse spacing ensures maximum grip and holding power across the entire 1-3/4" length for versatile fastening.
• Rockwell C39 hardness delivers excellent wear resistance, maintaining thread integrity through repeated use and adjustments.
• Compliance with RoHS 3 and REACH guarantees environmentally safe materials, meeting global regulatory standards for industrial components.

Professional Applications & Engineering Value

This Black-Oxide Alloy Steel Socket Head Cap Screw is engineered to address critical challenges in heavy-duty machinery, automotive assemblies, and precision equipment. The ASTM A574 specification ensures consistent quality and high tensile strength, making it ideal for applications requiring robust, reliable fastening under dynamic loads. The low-profile socket head design minimizes protrusion, facilitating use in compact spaces where standard bolts may not fit. With coarse UNC threads and a Class 3A fit, it provides superior resistance to loosening from vibrations, common in industrial settings. The black-oxide surface treatment adds a protective layer against rust and wear, extending the fastener's lifespan in corrosive environments. These features collectively enhance assembly efficiency, reduce maintenance needs, and support long-term operational stability in sectors like manufacturing, construction, and aerospace.

Specification Summary & Compliance

This socket head cap screw adheres to precise dimensional standards, including a Class 3A thread fit for high accuracy and a 1/2"-13 UNC coarse thread profile. Manufactured in accordance with ASTM A574, it meets rigorous mechanical properties for alloy steel fasteners. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.