S-90128A156 3/8"-24 x 7/8" ASTM A574 Alloy Steel Socket Head Screws
Alloy Steel 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 zinc-plated alloy steel construction for extended service life in harsh environments
- Exceptional load-bearing capacity with 170,000 psi tensile strength to withstand high-stress applications
- Precise fine thread engagement with Class 3A fit for secure, vibration-resistant connections
- Optimal torque transmission through hex drive design preventing tool slippage during installation
- Full thread coverage along the 7/8" length for maximum grip and adjustment flexibility
- Consistent performance reliability backed by ASTM A574 manufacturing standards
- Environmental compliance assurance meeting RoHS 3 and REACH regulations for global supply chain compatibility
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these socket head cap screws deliver critical performance where space constraints and high clamping forces coexist. The zinc-plated alloy steel construction provides essential corrosion protection while maintaining the Rockwell C37 hardness required for repeated disassembly cycles. The 3/8"-24 UNF fine thread configuration offers superior resistance to vibrational loosening compared to coarse threads, making these fully threaded fasteners ideal for precision machinery, automotive assemblies, and heavy equipment manufacturing. The hex drive system ensures efficient torque application in confined spaces, while the Class 3A thread fit guarantees consistent engagement in tapped holes for reliable joint integrity.
Specification Summary & Compliance
This socket head cap screw features precision 3/8"-24 UNF fine threads with Class 3A fit tolerances, ensuring consistent thread engagement. Manufacturing complies with ASTM A574 specification for socket head cap screws. The product meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations, confirming environmental responsibility in industrial supply chains.
