S-95373A224 5/8"-11 x 4" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws
Low-Strength Steel Hex Head Screws
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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 corrosion resistance with hot-dipped galvanized finish, ideal for outdoor or harsh industrial environments.
- High tensile strength of 60,000 psi ensures reliable performance under heavy loads and vibrations.
- Rockwell B69 hardness provides excellent durability and resistance to wear and deformation.
- Coarse UNC thread design allows for faster installation and reduced risk of cross-threading in various materials.
- Class 2A thread fit offers consistent, easy assembly while maintaining secure fastening integrity.
- External hex drive and hex head enable high-torque application with standard tools, speeding up projects.
- Compliance with ASME B18.2.1 and ASTM A307 guarantees consistent quality and interchangeability in professional settings.
Professional Applications & Engineering Value
These 5/8"-11 UNC hex head screws are engineered to address common industrial challenges, such as structural loosening under dynamic loads and corrosion in exposed settings. The hot-dipped galvanized steel construction provides a thick, protective layer that significantly extends service life in applications like construction frameworks, machinery assembly, and infrastructure projects. With a coarse thread and partial threading, they offer optimal grip in wood, metal, and composite materials, reducing installation time and minimizing thread stripping. The 60,000 psi tensile strength and Rockwell B69 hardness ensure that these screws maintain clamp force and resist shear forces, making them a dependable choice for heavy-duty fastening where safety and longevity are critical.
Specification Summary & Compliance
This product features a Class 2A thread fit per UNC standards, ensuring precise dimensional accuracy for reliable engagement. It conforms to ASME B18.2.1 and ASTM A307 specifications, covering material and manufacturing requirements. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible procurement and use in global markets.
