S-92220A266 3/8"-16 x 2 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 demanding industrial environments
- Exceptional tensile strength of 140,000 psi provides reliable performance under high-stress applications
- Precision Class 3A thread fit ensures secure fastening with minimal backlash in critical assemblies
- Low-profile socket head design allows installation in confined spaces while maintaining full hex drive engagement
- Rockwell C39 hardness rating delivers excellent wear resistance and durability through repeated use
- Coarse UNC threading enables quick installation and reduced cross-threading risks in production environments
- Full thread coverage along the 2-1/2" length provides consistent clamping force across the entire fastener
Professional Applications & Engineering Value
These black-oxide alloy steel socket head cap screws address critical engineering challenges in industrial machinery, automotive assemblies, and heavy equipment applications. The combination of 140,000 psi tensile strength and Rockwell C39 hardness ensures reliable performance in high-vibration environments where fastener failure is not an option. The low-profile socket head with hex drive accommodates space-constrained designs while maintaining maximum torque transmission. The 3/8"-16 UNC coarse thread configuration provides rapid assembly in production lines and resists loosening under dynamic loads. The black-oxide surface treatment offers enhanced corrosion protection without significant dimensional changes, making these fasteners ideal for applications requiring both precision fit and environmental resistance.
Specification Summary & Compliance
Manufactured to ASTM A574 specifications with Class 3A thread tolerance for precision fitment. Features 3/8"-16 UNC coarse threads with right-hand orientation and full threading along the 2-1/2" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring suitability for regulated industrial applications worldwide.
