S-92620A874 3/4"-16 x 2 1/2" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Maximum load-bearing capacity with Grade 8 strength rating and 150,000 psi tensile strength for heavy-duty applications
• Superior corrosion resistance through zinc yellow-chromate plating that protects against harsh industrial environments
• Precise thread engagement with UNF fine threads and Class 2A fit ensuring reliable fastening in critical assemblies
• Easy installation and removal with standard external hex drive and 1 1/8" head width for common tool compatibility
• Full-threaded design providing consistent clamping force along the entire 2 1/2" length
• Enhanced durability with Rockwell C33 hardness maintaining structural integrity under repeated stress
• Regulatory compliance assurance meeting ASME B18.2.1, SAE J429, RoHS 3, and REACH standards

Professional Applications & Engineering Value

These Grade 8 hex head screws deliver exceptional engineering value in demanding industrial applications where failure is not an option. The combination of high-strength steel construction and UNF fine threading provides superior vibration resistance in machinery, automotive assemblies, and structural frameworks. The zinc yellow-chromate plating offers critical corrosion protection in environments exposed to moisture, chemicals, or outdoor elements, significantly extending service life. With their fully threaded design and Class 2A thread fit, these fasteners ensure precise alignment and consistent clamping force distribution across the entire engagement length. The standardized external hex drive and substantial head dimensions facilitate efficient installation and maintenance operations, reducing assembly time while maintaining the integrity of high-stress connections in construction equipment, industrial machinery, and transportation applications.

Specification Summary & Compliance

This 3/4"-16 hex head screw features precise Class 2A thread fit tolerances with UNF fine threading according to ASME standards. Manufactured to meet ASME B18.2.1 and SAE J429 specifications for dimensional accuracy and performance requirements. The fastener is fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety, ensuring environmental responsibility in industrial supply chains.