S-90128A174 1"-8 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 capability with 170,000 psi tensile strength for reliable performance in high-stress applications
- Superior corrosion resistance provided by zinc-plated alloy steel construction for extended service life in harsh environments
- Precision thread engagement with Class 3A fit ensuring consistent clamping force and vibration resistance
- Optimized drive efficiency through 3/4" hex drive design allowing high torque application without stripping
- Enhanced durability with Rockwell C37 hardness maintaining structural integrity under repeated use
- Versatile installation compatibility with UNC coarse threads facilitating quick assembly in various materials
- Regulatory compliance assurance meeting ASTM A574 specifications and environmental standards for industrial safety
Professional Applications & Engineering Value
This zinc-plated alloy steel socket head cap screw delivers critical engineering solutions for heavy machinery, automotive assemblies, and structural frameworks where high tensile strength and corrosion resistance are paramount. The 1"-8 UNC coarse thread configuration with Class 3A fit provides superior resistance to vibrational loosening while enabling rapid installation in thick materials. The partially threaded design concentrates strength where needed most, preventing thread damage during repeated disassembly. With 170,000 psi tensile strength and Rockwell C37 hardness, these industrial fasteners maintain clamping force under extreme dynamic loads, solving common failure points in demanding applications while the 3/4" hex drive accommodates standard tools for efficient maintenance operations.
Specification Summary & Compliance
Manufactured to ASTM A574 specifications with Class 3A thread fit ensuring precision dimensional accuracy. Features 1"-8 UNC coarse threads with right-hand direction and 2½" minimum thread length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial safety requirements.
