S-92620A698 7/16"-20 x 7/8" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional strength for demanding applications with Grade 8 classification and 150,000 psi tensile strength
• Superior corrosion resistance provided by the zinc yellow-chromate plating on steel construction
• Precise thread engagement with UNF fine threads and Class 2A fit ensuring reliable fastening
• High durability and wear resistance from Rockwell C33 hardness for extended service life
• Optimal torque transmission through the external hex drive and 5/8" head width design
• Full thread coverage along the 7/8" length for maximum grip and load distribution
• Regulatory compliance assurance meeting ASME B18.2.1, SAE J429, RoHS 3, and REACH standards

Professional Applications & Engineering Value

This Grade 8 hex head screw delivers critical performance in heavy-duty industrial applications where failure is not an option. The steel construction with zinc yellow-chromate plating provides exceptional protection against corrosion in harsh environments, while the UNF fine thread pattern offers superior vibration resistance compared to coarse threads. The external hex drive design allows for high torque application, making these fully threaded fasteners ideal for machinery assembly, structural connections, and equipment manufacturing. With 150,000 psi tensile strength and Rockwell C33 hardness, these screws maintain integrity under extreme loads, preventing stripping and deformation in critical joints. The combination of precision threading and robust material properties ensures reliable performance in automotive, construction, and industrial machinery applications where safety and durability are paramount.

Specification Summary & Compliance

This 7/16"-20 hex head screw features Class 2A thread fit per UNF standards, ensuring precise dimensional accuracy and proper clearance for reliable assembly. Manufactured to ASME B18.2.1 and SAE J429 specifications, these fasteners maintain consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental and safety standards for industrial use worldwide. The 7/8" length and fully threaded design provide complete fastening capability across the entire shank length for maximum holding power.