S-91247A698 7/16"-14 x 8" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior load-bearing capacity with 120,000 psi tensile strength and Grade 5 classification for reliable performance in demanding applications
• Enhanced corrosion resistance through zinc plating, extending service life in various industrial environments
• Optimized thread engagement with coarse 7/16"-14 UNC threading and Class 2A fit ensuring secure fastening and vibration resistance
• Robust mechanical properties featuring Rockwell C25 hardness for excellent wear resistance and durability
• Efficient installation and removal with external hex drive and 5/8" head width providing superior torque transmission
• Versatile partial threading design with 1 3/8" minimum thread length allowing precise clamping force control
• Regulatory compliance assurance meeting ASME B18.2.1, SAE J429, RoHS 3, and REACH standards for quality and safety

Professional Applications & Engineering Value

This Grade 5 hex head screw delivers exceptional engineering value through its zinc plated steel construction and 7/16"-14 UNC coarse thread design. The combination of 120,000 psi tensile strength and Rockwell C25 hardness addresses critical industrial challenges where fastener failure is not an option. The partially threaded configuration with 1 3/8" minimum thread length provides optimal stress distribution, preventing joint loosening in vibrating machinery and structural applications. The external hex drive with substantial 5/8" head width ensures reliable torque application during installation, making it ideal for heavy-duty fastening in construction equipment, agricultural machinery, and industrial assembly lines where consistent clamping force and corrosion resistance are paramount.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with 8" length and Class 2A thread fit tolerance for consistent performance. The coarse thread spacing and right hand thread direction follow standardized specifications. Compliance is verified with ASME B18.2.1 and SAE J429 Grade 5 manufacturing standards, along with environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for hazardous substance restrictions.