S-90128A735 1/2"-13 x 5" 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
- Exceptional load-bearing capacity with 170,000 psi tensile strength for reliable performance in high-stress applications
- Superior corrosion resistance provided by zinc plating, extending service life in harsh industrial environments
- Precise thread engagement with Class 3A fit ensuring secure fastening and vibration resistance
- Optimized drive efficiency through 3/8" hex socket design for high-torque installation without stripping
- Enhanced durability from Rockwell C37 hardness maintaining structural integrity under repeated use
- Versatile partial threading allowing both clamping and alignment functions in assembly applications
- Regulatory compliance assurance meeting ASTM A574, RoHS 3, and REACH standards for global project suitability
Professional Applications & Engineering Value
These zinc-plated alloy steel socket head cap screws deliver critical performance advantages for demanding industrial applications. The 1/2"-13 UNC coarse thread configuration provides rapid installation and superior resistance to vibration loosening in heavy machinery, automotive assemblies, and structural frameworks. The partially threaded design allows precise clamping force distribution while the 3/8" hex drive accommodates high-torque applications without cam-out risks. Engineered with Class 3A thread fit, these fasteners maintain dimensional stability in critical joints where precision alignment and reliable load transfer are essential. The combination of 170,000 psi tensile strength and corrosion-resistant zinc plating ensures long-term reliability in manufacturing equipment, construction projects, and transportation systems exposed to dynamic stresses and environmental challenges.
Specification Summary & Compliance
Manufactured to ASTM A574 specifications with Class 3A thread tolerance for precision fit. Features 1/2"-13 UNC coarse threads with right-hand orientation and 2" minimum thread length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. Inch system measurements include 5" overall length, 3/4" head diameter, and 1/2" head height with standard socket head profile.
