S-92220A208 1/4"-28 x 3/8" ASTM A574 Alloy Steel Low-Profile Socket Head Screws
Alloy Steel Low-Profile Socket Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance due to the black-oxide finish, extending service life in demanding industrial environments.
- Exceptional tensile strength of 140,000 psi ensures reliable performance under high-stress conditions, preventing fastener failure.
- Precise Class 3A thread fit guarantees secure, vibration-resistant assemblies with minimal risk of loosening.
- Low-profile head design allows for installation in tight spaces where clearance is limited, enhancing design flexibility.
- High hardness (Rockwell C39) provides excellent wear resistance, maintaining thread integrity through repeated use.
- Fine UNF threads offer improved adjustment precision and a stronger grip compared to coarse threads.
- Compliance with ASTM A574, RoHS 3, and REACH ensures material quality and environmental safety for global supply chains.
Professional Applications & Engineering Value
This low profile socket head cap screw is engineered from black-oxide alloy steel to address critical challenges in precision assemblies. Its fine UNF threads and Class 3A fit provide superior clamping force and vibration resistance, making it ideal for high-stress applications in aerospace, automotive, and machinery. The low-profile head and compact 3/8" length enable use in confined spaces, while the 1/8" hex drive ensures easy installation with standard tools. The black-oxide surface treatment enhances corrosion resistance, prolonging lifespan in harsh conditions. Fully threaded for consistent holding power, this fastener meets rigorous ASTM A574 specifications, delivering reliability where failure is not an option.
Specification Summary & Compliance
This screw features a 1/4"-28 UNF thread with a Class 3A fit for precise dimensional accuracy and superior thread engagement. Manufactured in accordance with ASTM A574 standards, it ensures consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility for industrial use.
