S-92620A231 1/2"-13 x 7 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 capability with 150,000 psi tensile strength and Rockwell C33 hardness for reliable performance in high-stress applications
• Superior corrosion protection through zinc yellow-chromate plating that extends service life in harsh industrial environments
• Optimized thread engagement with Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
• Enhanced installation efficiency featuring external hex drive and 3/4" head width for superior torque application
• Versatile partial threading design providing both threaded and unthreaded sections for precise clamping control
• Heavy-duty construction compatibility with 7 1/2" length and 1/2"-13 thread size suitable for structural and machinery applications
• Regulatory compliance assurance meeting ASME B18.2.1, SAE J429 Grade 8, RoHS 3, and REACH standards

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these Grade 8 hex head screws deliver exceptional performance in construction, heavy machinery, and structural assemblies. The zinc yellow-chromate plated steel construction provides superior corrosion resistance critical for outdoor or chemically aggressive environments. The 1/2"-13 UNC coarse thread configuration ensures rapid installation and reliable holding power in structural steel connections, while the partial threading design prevents thread damage during assembly and provides optimal stress distribution. With external hex drive and substantial head dimensions, these screws accommodate high torque requirements without stripping, making them ideal for critical joints in industrial equipment and infrastructure projects where failure is not an option.

Specification Summary & Compliance

This Grade 8 hex head screw features precise Class 2A thread fit with UNC coarse threading (1/2"-13) and partial threading extending 1 1/2" minimum. Manufactured to ASME B18.2.1 specifications and SAE J429 Grade 8 standards, the fastener delivers 150,000 psi tensile strength and Rockwell C33 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.