S-91583A232 1"-8 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 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 UNC coarse threading and Class 2A fit ensuring secure fastening and vibration resistance
- Enhanced installation efficiency featuring external hex drive and hex head design for straightforward torque application
- Precision-engineered dimensions with 2½" length and 1¾" thread length providing versatile grip range for structural connections
- 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 manufacturing standards
Professional Applications & Engineering Value
Engineered for demanding structural applications, these Grade A325 hex head screws deliver critical performance where failure is not an option. The hot-dipped galvanized steel construction provides exceptional barrier protection against corrosion, making them ideal for outdoor construction, bridgework, and industrial framework exposed to environmental elements. The 1"-8 UNC coarse thread configuration ensures rapid installation and superior resistance to vibrational loosening, while the partially threaded design concentrates strength at the shear plane. With Rockwell C19 hardness and controlled tensile strength, these structural bolts maintain integrity under dynamic loads and temperature variations, solving common challenges of joint relaxation and material degradation in heavy-duty fastening scenarios.
Specification Summary & Compliance
These hex head screws feature precise Class 2A thread fit tolerances with 1"-8 UNC coarse threading and partial threading configuration. Manufacturing complies with ASME B18.2.6 dimensional standards and material specifications per ASTM A325 and ASTM F3125. The fasteners are fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to international environmental and safety regulations for industrial components.
