S-92620A151 3/8"-16 x 13" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capability with 150,000 psi tensile strength and Grade 8 classification for reliable performance in high-stress applications
• Superior corrosion protection through zinc yellow-chromate plating that extends service life in harsh industrial environments
• Precise thread engagement with Class 3A fit and UNC coarse threading ensuring secure fastening and vibration resistance
• Optimized partial threading design providing both gripping strength and clearance where needed along the 13" length
• Heavy-duty material construction featuring Rockwell C33 hardness for exceptional durability and wear resistance
• Industry-standard compliance meeting ASME B18.2.1 and SAE J429 specifications for guaranteed quality and interoperability
• Environmental regulation adherence with RoHS 3 and REACH compliance for safe use across global markets

Professional Applications & Engineering Value

This Grade 8 hex head screw delivers critical engineering solutions for heavy machinery, structural assemblies, and industrial equipment where failure is not an option. The 3/8"-16 UNC coarse threading with Class 3A fit provides superior vibration resistance in dynamic load conditions, while the partial threading design allows for both clamping force and structural clearance. The zinc yellow-chromate plating creates a robust barrier against corrosion in outdoor or chemically aggressive environments, significantly extending maintenance intervals. With 150,000 psi tensile strength and Rockwell C33 hardness, this fastener maintains integrity under extreme mechanical stress, making it ideal for construction equipment, automotive frames, and industrial machinery where reliability and longevity are paramount.

Specification Summary & Compliance

This hex head screw features precise 3/8"-16 UNC coarse threading with Class 3A thread fit tolerance for optimal engagement. Manufactured to ASME B18.2.1 and SAE J429 Grade 8 specifications, ensuring dimensional accuracy and mechanical properties. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, providing assurance for international industrial applications and supply chain requirements.