S-92220A207 1/4"-20 x 3" 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 in demanding applications.
• Superior corrosion resistance provided by the black-oxide coating extends service life and maintains integrity in harsh industrial environments.
• Precise Class 3A thread fit guarantees secure, vibration-resistant assemblies with minimal risk of loosening over time.
• Low-profile socket head design allows for installation in tight spaces while offering a sleek, unobtrusive finish.
• High hardness (Rockwell C39) enhances durability and wear resistance, making it suitable for repetitive or high-load scenarios.
• Fully threaded shank enables uniform load distribution and consistent clamping force along the entire length.
• Compliance with RoHS 3 and REACH ensures environmental safety and regulatory adherence for global industrial use.

Professional Applications & Engineering Value

This low profile socket head cap screw is engineered to address critical challenges in machinery assembly, automotive systems, and precision equipment. The black-oxide alloy steel construction, combined with a Class 3A UNC coarse thread, delivers robust clamping force and resistance to vibrational loosening, which is essential for dynamic operational environments. Its fully threaded design ensures even stress distribution, minimizing point failures and enhancing structural integrity. The low-profile head facilitates use in confined spaces without compromising on strength, while the corrosion-resistant surface treatment prolongs lifespan in exposed or humid conditions. Ideal for high-performance industrial fasteners applications, it supports efficient maintenance and reduces downtime through reliable, long-term performance.

Specification Summary & Compliance

This screw adheres to inch system dimensions with a 1/4"-20 UNC coarse thread and Class 3A precision fit for consistent assembly. Manufactured to meet ASTM A574 specifications, it ensures high tensile strength and material reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industrial markets.