S-92620A623 3/8"-16 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 a Grade 8 rating, 150,000 psi tensile strength, and Rockwell C33 hardness, ensuring reliable performance under high stress.
• Superior corrosion resistance provided by the zinc yellow-chromate plating, extending the fastener's lifespan in harsh or outdoor environments.
• Precise and reliable thread engagement with a Class 2A thread fit and coarse UNC thread, facilitating easier assembly and reducing the risk of cross-threading.
• Optimized for high-torque applications thanks to the external hex head design, allowing for secure tightening with standard tools.
• Full threading for maximum grip and load distribution along the entire 7/8" length, enhancing holding power in critical joints.
• Compliance with major industry standards including ASME B18.2.1 and SAE J429, ensuring consistent quality and interchangeability.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements for hazardous substances.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this Grade 8 hex head screw addresses critical challenges in machinery, construction, and automotive assemblies where high tensile strength and durability are paramount. The steel material and zinc yellow-chromate plating work synergistically to combat corrosion, reducing maintenance costs in exposed or high-moisture environments. With a coarse UNC thread and Class 2A fit, it ensures quick, secure fastening without compromising on precision, minimizing assembly time and potential failures. Ideal for structural frames, engine components, and equipment requiring 150,000 psi tensile strength, this fully threaded screw provides uniform stress distribution, enhancing the integrity of bolted connections in demanding settings.

Specification Summary & Compliance

This fastener adheres to precise dimensional standards with a Class 2A thread fit and UNC coarse thread (3/8"-16), manufactured in accordance with ASME B18.2.1 and SAE J429 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety requirements for industrial use.