S-92220A251 3/8"-16 x 1/2" 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 with black-oxide coating, extending service life in harsh industrial environments.
- Exceptional tensile strength of 140,000 psi ensures reliable performance under high-stress conditions.
- Precise Class 3A thread fit guarantees secure, vibration-resistant fastening in critical assemblies.
- Low-profile socket head design allows for installation in tight spaces without compromising drive engagement.
- High hardness (Rockwell C39) provides excellent wear resistance and reduces thread stripping risks.
- Coarse UNC threads enable quick assembly and disassembly, improving maintenance efficiency.
- Full compliance with ASTM A574, RoHS 3, and REACH ensures material consistency and environmental safety.
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these black-oxide alloy steel socket head cap screws deliver robust performance where reliability is non-negotiable. The 3/8"-16 UNC coarse threads with Class 3A fit provide superior clamping force and vibration resistance, making them ideal for heavy machinery, automotive assemblies, and precision equipment. The low-profile head and 3/16" hex drive facilitate easy access in confined spaces, while the 140,000 psi tensile strength and Rockwell C39 hardness ensure durability under cyclic loading and harsh operational conditions. This combination addresses common engineering challenges like fastener failure, corrosion, and installation inefficiency, offering a trusted solution for OEM and MRO requirements.
Specification Summary & Compliance
This socket head cap screw features a 3/8"-16 UNC coarse thread with Class 3A fit precision for tight tolerances and reliable engagement. Manufactured to ASTM A574 specifications, 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 adherence to environmental and safety standards. Dimensions include a 1/2" length, 9/16" head diameter, and low-profile socket head, designed for precise application requirements in the inch measurement system.
