S-91571A294 3/4"-10 x 2 1/2" ASME B18.2.6, ASTM A325, ASTM F3125 Medium-Strength Steel Heavy Hex Head Screws for Structural Applications
Medium-Strength Steel Heavy Hex Head Screws for Structural Applications
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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 structural reliability with Grade A325 classification and 120,000 PSI tensile strength for heavy-duty applications
- Superior corrosion resistance and durability from high-strength steel construction and Rockwell C19 hardness
- Optimized load distribution through partially threaded design with 1 3/8" thread length and 1 1/8" grip length
- Easy installation and removal with external hex drive and 1 1/4" head width for standard wrench compatibility
- Reliable thread engagement with UNC coarse threads and Class 2A fit ensuring consistent fastening performance
- Compliance with industry standards including ASME B18.2.6, ASTM A325, and ASTM F3125 for quality assurance
- Environmental responsibility through RoHS 3 and REACH compliance for sustainable industrial use
Professional Applications & Engineering Value
This Grade A325 heavy-duty hex head screw delivers critical performance in structural steel connections, bridge construction, and industrial machinery assembly. The high-strength steel construction with 120,000 PSI tensile strength and Rockwell C19 hardness ensures reliable performance under extreme loads and vibration. The partially threaded design with UNC coarse threads provides optimal stress distribution while preventing thread stripping in structural steel members. The external hex drive configuration allows for high-torque installation using standard tools, making it ideal for construction projects requiring ASME B18.2.6 compliance. These structural fasteners maintain integrity in demanding environments while meeting strict industry specifications for structural bolting applications.
Specification Summary & Compliance
This 3/4"-10 hex head screw features precise Class 2A thread fit with UNC coarse threading and inch system dimensions. Manufactured to ASME B18.2.6, ASTM A325, and ASTM F3125 specifications for structural bolting applications. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and sustainable use in industrial and construction environments.
