S-92620A236 1"-14 x 3 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 150,000 psi tensile strength and Grade 8 classification, ensuring reliability in high-stress applications
• Superior corrosion resistance through zinc yellow-chromate plating, extending service life in harsh industrial environments
• Precise thread engagement with 1"-14 extra fine thread and Class 2A fit, providing secure fastening in critical assemblies
• Enhanced durability backed by Rockwell C33 hardness, maintaining structural integrity under repeated stress
• Optimized torque transmission via external hex drive and 1 1/2" head width, enabling efficient installation with standard tools
• Versatile partial threading allowing both threaded and unthreaded shaft sections for flexible application requirements
• Full regulatory compliance meeting ASME B18.2.1, SAE J429, RoHS 3, and REACH standards for global industrial use

Professional Applications & Engineering Value

This Grade 8 hex head screw delivers exceptional engineering value through its high-strength steel construction and specialized extra fine thread design. The 1"-14 UNS thread configuration provides superior vibration resistance and precise alignment in heavy machinery, structural steel connections, and precision equipment assemblies. The zinc yellow-chromate plating creates a robust barrier against corrosion in demanding environments including manufacturing facilities, outdoor installations, and chemical processing plants. With partial threading and 3 1/2" length, it offers optimal grip range while preventing thread damage in through-hole applications. These industrial screws solve critical fastening challenges where both extreme tensile strength and environmental protection are required, making them ideal for heavy-duty applications in construction, automotive, and industrial machinery sectors.

Specification Summary & Compliance

Manufactured to exacting Class 2A thread fit tolerances with 1"-14 extra fine UNS threads and 2 1/4" minimum thread length. Complies with ASME B18.2.1 and SAE J429 specifications for dimensional accuracy and mechanical properties. Meets international environmental standards including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for hazardous substance restrictions. The Grade 8 strength classification ensures consistent performance across industrial applications requiring 150,000 psi tensile strength and Rockwell C33 hardness ratings.