S-91571A433 3/4"-10 x 7 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 load-bearing capacity with 120,000 psi tensile strength, ideal for critical structural connections.
- Superior wear resistance due to Rockwell C19 hardness, ensuring long-term performance in demanding environments.
- Reliable coarse UNC threading for faster assembly and reduced cross-threading risks in heavy-duty applications.
- Secure external hex drive provides high torque transmission and easy installation with standard tools.
- Optimized partial threading allows for precise clamp load control and vibration resistance in structural joints.
- Full compliance with industry standards including ASME B18.2.6, ASTM A325, and ASTM F3125 for guaranteed quality and interchangeability.
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements.
Professional Applications & Engineering Value
Engineered for structural steel connections and heavy machinery assembly, this Grade A325 hex head screw addresses critical challenges in industrial construction. The high-strength steel construction and coarse UNC thread design prevent loosening under dynamic loads and vibration, while the partially threaded shank ensures proper grip length for uniform stress distribution. With its external hex drive and 1 1/4" head width, it enables efficient installation in confined spaces using standard wrenches. These ASME B18.2.6 compliant fasteners are trusted in bridges, buildings, and equipment frames where failure is not an option, delivering consistent performance under extreme mechanical stress.
Specification Summary & Compliance
This 3/4"-10 hex head screw features Class 2A thread fit for standard clearance and assembly ease, with precise UNC coarse threading and a total length of 7 1/2". Manufactured to ASME B18.2.6, ASTM A325, and ASTM F3125 specifications, it guarantees dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to environmental and safety regulations without compromising performance.
