S-92620A868 3/4"-16 x 1" 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 150,000 psi tensile strength for critical structural applications
• Superior corrosion resistance through zinc yellow-chromate plating for extended service life in harsh environments
• Precise thread engagement with Class 2A UNF fine threads ensuring reliable fastening and vibration resistance
• Exceptional durability from Grade 8 steel construction with Rockwell C33 hardness for heavy-duty use
• Optimized torque transmission via external hex drive and 1 1/8" head width for secure installation
• Full-threaded design providing consistent clamping force along the entire 1" length
• Industry compliance assurance meeting ASME B18.2.1 and SAE J429 specifications for quality and reliability

Professional Applications & Engineering Value

This Grade 8 hex head screw delivers exceptional performance in demanding industrial environments where failure is not an option. The combination of 150,000 psi tensile strength and Rockwell C33 hardness provides critical resistance to shear forces and permanent deformation in heavy machinery, structural steel connections, and high-vibration equipment. The UNF fine threading offers superior resistance to loosening under dynamic loads compared to coarse threads, while the zinc yellow-chromate plating creates a robust barrier against corrosion in outdoor or chemically aggressive settings. Engineered for industrial fastening applications requiring reliable, long-term performance, this fully threaded steel hex screw maintains clamping force integrity throughout its entire length, making it ideal for critical joints in construction, manufacturing, and transportation equipment.

Specification Summary & Compliance

This 3/4"-16 hex head screw features precision Class 2A thread fit tolerances with UNF fine threading (16 threads per inch) and full threading along its 1" length. Manufactured to exacting ASME B18.2.1 dimensional standards and SAE J429 material specifications, this fastener ensures consistent performance and interchangeability. The inch system measurement, external hex drive configuration, and complete threading provide reliable installation characteristics. Compliant with industry standards for heavy-duty mechanical applications, this Grade 8 fastener delivers verified mechanical properties including the specified tensile strength and hardness ratings.