S-92620A832 3/4"-10 x 1 1/4" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 150,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Superior corrosion resistance from zinc yellow-chromate plating extends service life in harsh industrial environments.
• High hardness rating (Rockwell C33) provides excellent wear resistance and durability under repetitive loads.
• Full UNC coarse threading with Class 2A fit enables faster assembly and secure fastening in various materials.
• External hex drive design allows for high torque application with standard tools, simplifying maintenance and installation.
• Grade 8 certification guarantees consistent quality and mechanical properties for critical fastening requirements.
• Compliance with major industry standards including ASME B18.2.1 and SAE J429 ensures interoperability and reliability.

Professional Applications & Engineering Value

This Grade 8 hex head screw delivers exceptional engineering value in demanding industrial environments where fastener integrity is critical. The combination of high-strength steel and zinc yellow-chromate plating addresses common challenges of corrosion and mechanical failure in heavy machinery, structural assemblies, and equipment manufacturing. The UNC coarse thread configuration provides superior holding power in both metallic and non-metallic materials, while the external hex drive enables efficient installation in confined spaces. These industrial screws are engineered to maintain clamping force under vibration and dynamic loads, making them ideal for construction equipment, automotive systems, and industrial machinery where reliable fastening solutions are essential for operational safety and longevity.

Specification Summary & Compliance

This fastener features precision UNC 3/4"-10 coarse threads with Class 2A fit tolerance for consistent engagement. Manufactured to ASME B18.2.1 and SAE J429 Grade 8 specifications, it ensures dimensional accuracy and mechanical performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, containing no substances of very high concern. With right-hand threading and 1 1/4" length, it meets industry standards for heavy-duty applications requiring verified material properties and manufacturing consistency.