S-91247A814 5/8"-11 x 5" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws
Medium-Strength Grade 5 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
- High tensile strength of 120,000 psi ensures reliable performance in demanding heavy-duty applications, reducing the risk of fastener failure.
- Zinc plating provides excellent corrosion resistance, extending the service life of the screw in harsh industrial environments.
- Grade 5 steel with Rockwell C25 hardness offers superior durability and resistance to wear, maintaining integrity under high stress.
- Coarse UNC threads and Class 2A fit allow for quick and secure installation, minimizing assembly time and improving efficiency.
- External hex drive design enables easy tightening with standard tools, ensuring straightforward maintenance and disassembly.
- Partial threading provides optimal grip and vibration resistance, ideal for applications where precise clamping is critical.
- Compliance with ASME B18.2.1 and SAE J429 standards guarantees consistent quality and interoperability in various engineering projects.
Professional Applications & Engineering Value
This Grade 5 hex head screw is engineered to address common industrial challenges, such as joint loosening under vibration and corrosion in outdoor settings. Made from high-strength steel and featuring a zinc-plated finish, it resists rust and wear, making it suitable for construction, machinery assembly, and heavy equipment. The coarse UNC thread and right-hand direction ensure easy alignment and secure fastening in materials like metal and wood, while the partial threading design enhances grip and reduces stress concentration. By meeting rigorous standards, this 5/8"-11 UNC fastener delivers reliable performance in industrial applications, minimizing downtime and maintenance costs.
Specification Summary & Compliance
This screw adheres to precise dimensional tolerances, including Class 2A thread fit and UNC coarse thread specifications, ensuring compatibility and ease of use. It conforms to ASME B18.2.1 and SAE J429 manufacturing standards, with additional compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for various industrial environments.
