S-92220A213 1/4"-28 x 1" ASTM A574 Alloy Steel Low-Profile Socket Head Screws

Key Features & Benefits at a Glance

• Superior tensile strength of 140,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Exceptional hardness (Rockwell C39) provides excellent wear resistance and durability, extending the service life of the fastener in repetitive or high-load scenarios.
• Precision Class 3A thread fit guarantees tight tolerances and secure fastening, minimizing backlash and improving assembly accuracy in precision machinery.
• Low-profile socket head design allows for installation in confined spaces where standard head height is restrictive, enhancing design flexibility.
• Black-oxide surface treatment on alloy steel offers improved corrosion resistance and a sleek appearance, suitable for various industrial environments without compromising strength.
• Fine UNF thread spacing ensures better load distribution and vibration resistance, making it ideal for applications requiring stable and secure connections.
• Comprehensive compliance with ASTM A574, RoHS 3, and REACH standards assures material quality and environmental safety, meeting global regulatory requirements for industrial use.

Professional Applications & Engineering Value

This low profile socket head cap screw is engineered to address common industrial challenges such as space constraints and high mechanical stress. Made from black-oxide alloy steel, it combines high tensile strength and hardness to prevent stripping and deformation in heavy-duty assemblies like machinery, automotive systems, and precision equipment. The fine UNF threads and Class 3A fit provide superior clamping force and vibration resistance, reducing maintenance needs in dynamic environments. Its compact head design allows for easy installation in tight areas, while the corrosion-resistant finish ensures longevity in harsh conditions, making it a reliable choice for engineers seeking durability and compliance with ASTM A574 and environmental standards.

Specification Summary & Compliance

This screw adheres to precise dimensional standards, including Class 3A thread fit for tight tolerances and UNF fine thread specifications. It is manufactured in accordance with ASTM A574 for consistent quality and performance. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) ensures it meets environmental and safety regulations, free from hazardous substances, suitable for global industrial applications.