S-92620A952 1"-8 x 1 3/4" 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, minimizing maintenance needs.
• High hardness rating (Rockwell C33) provides excellent wear resistance, maintaining thread integrity over repeated use.
• Full UNC coarse threading with Class 2A fit allows for quick installation and secure fastening, improving assembly efficiency.
• Heavy-duty Grade 8 classification guarantees consistent quality and durability for demanding mechanical applications.
• External hex drive design enables easy tightening with standard tools, reducing installation time and labor costs.
• Compliance with industry standards including ASME B18.2.1 and SAE J429 ensures interoperability and reliability in professional settings.

Professional Applications & Engineering Value

This Grade 8 hex head screw delivers critical engineering value through its high-strength steel construction and zinc yellow-chromate plating, specifically engineered to address common industrial challenges. The combination of 150,000 psi tensile strength and Rockwell C33 hardness provides exceptional resistance to vibration loosening and structural fatigue in heavy machinery, construction equipment, and automotive assemblies. The 1"-8 UNC coarse thread configuration ensures rapid installation while maintaining secure connections in materials where fine threads might strip or fail. The external hex drive accommodates high torque applications, making it ideal for maintenance operations and production lines where reliability and speed are paramount. This fastener solves durability concerns in corrosive environments while meeting the demanding requirements of industrial fastening systems.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit tolerances with 1"-8 UNC coarse threading and full threading along its 1 3/4" length. Manufacturing complies with ASME B18.2.1 and SAE J429 specifications for dimensional accuracy and performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental responsibility and regulatory adherence for global industrial applications.