S-92865A404 9/16"-18 x 1 3/4" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 120,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance through zinc plating that protects against rust and extends service life
• Precise thread engagement with Class 2A fit and UNF fine threads ensuring secure, vibration-resistant connections
• Optimized drive efficiency featuring external hex head design for easy installation with standard tools
• Enhanced durability from Grade 5 steel construction with Rockwell C25 hardness for long-term reliability
• Full threading capability providing consistent grip strength along the entire 1 3/4" length
• Industry compliance assurance meeting ASME, SAE, RoHS 3, and REACH standards for quality and safety

Professional Applications & Engineering Value

This 9/16"-18 UNF Grade 5 steel hex head screw delivers critical engineering solutions for industrial applications where vibration resistance and high tensile strength are paramount. The fine thread configuration provides superior clamping force distribution, making it ideal for machinery assembly, structural frameworks, and heavy equipment where joint integrity cannot be compromised. The zinc plated finish offers essential corrosion protection in challenging environments, while the external hex drive ensures efficient installation and removal with common tools. Engineered to withstand substantial mechanical stress, this fully threaded fastener maintains consistent performance in automotive, construction, and manufacturing applications where reliability is non-negotiable.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with Class 2A thread fit tolerance for optimal engagement. Complies with ASME B18.2.1 and SAE J429 Grade 5 specifications for mechanical properties and dimensional standards. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements for environmental safety. Features UNF fine threads (18 TPI) with right-hand direction and full threading along the 1 3/4" length for maximum fastening versatility.