S-91583A247 1"-8 x 5" 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 integrity with Grade A325 classification and 120,000 psi tensile strength for reliable performance in heavy-load applications
- Superior corrosion protection through hot-dipped galvanized steel construction, extending service life in harsh industrial environments
- Optimized thread engagement with Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
- Enhanced installation efficiency featuring external hex drive and standard 1"-8 thread size for quick assembly with common tools
- Precise load distribution through partially threaded design with 3¼" grip length for concentrated clamping force
- Industry compliance assurance meeting ASME B18.2.6, ASTM A325, and ASTM F3125 specifications for quality and safety
- Environmental regulation adherence with RoHS 3 and REACH compliance for responsible industrial usage
Professional Applications & Engineering Value
Engineered for structural steel connections and heavy machinery assembly, these Grade A325 hex head screws address critical challenges in industrial fastening. The hot-dipped galvanized steel construction provides robust protection against environmental degradation, while the 1"-8 UNC coarse threads deliver superior resistance to vibration loosening in dynamic applications. With partial threading concentrating clamping force precisely where needed, these fasteners prevent joint slippage in construction projects and structural frameworks. The combination of Rockwell C19 hardness and 120,000 psi tensile strength ensures reliable performance under extreme loads, making them ideal for bridges, building frames, and industrial equipment where failure is not an option.
Specification Summary & Compliance
Manufactured to exacting standards with Class 2A thread fit tolerance for consistent engagement and UNC coarse thread profile for rapid installation. These 5" length hex head screws comply with ASME B18.2.6 dimensional specifications and ASTM A325/ASTM F3125 material and mechanical requirements. Full regulatory compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) ensures environmentally responsible manufacturing and usage in industrial applications worldwide.
