S-91583A136 5/8"-11 x 1 3/4" 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 120,000 psi tensile strength and Rockwell C19 hardness for reliable performance in demanding applications.
- Superior corrosion protection from hot-dipped galvanized steel coating, extending service life in harsh industrial environments.
- Optimized clamping force through partially threaded design with 1 1/4" thread length and 1/2" grip length for secure connections.
- Easy installation and removal with external hex drive and coarse UNC threads, reducing assembly time and effort.
- Precise thread engagement with Class 2A fit ensuring consistent performance and reducing the risk of cross-threading.
- High-strength compliance meeting Grade A325 specifications for structural bolting in construction and heavy machinery.
- Broad regulatory acceptance with adherence to ASME, ASTM, RoHS 3, and REACH standards for global project suitability.
Professional Applications & Engineering Value
Engineered for structural fastening in critical applications, these Grade A325 hex head screws provide a robust solution for steel construction, bridgework, and heavy equipment assembly. The hot-dipped galvanized steel material offers enhanced durability against environmental factors, while the partially threaded design with coarse UNC threads ensures efficient load distribution and vibration resistance. This combination addresses common industrial challenges like joint slippage and corrosion-induced failure, making them ideal for high-stress environments where reliability and longevity are paramount. Their compliance with major standards ensures seamless integration into engineering specifications worldwide.
Specification Summary & Compliance
This 5/8"-11 hex head screw features a Class 2A thread fit for precise dimensional accuracy and smooth assembly. It conforms to ASME B18.2.6, ASTM A325, and ASTM F3125 manufacturing specifications, guaranteeing consistent quality and performance. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for use in various industrial sectors.