S-92865A014 1/4"-28 x 1 3/4" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• High tensile strength of 120,000 psi ensures reliable performance in demanding industrial applications
• Zinc plating provides excellent corrosion resistance for extended service life in harsh environments
• Grade 5 steel construction with Rockwell C25 hardness offers superior durability and load-bearing capacity
• UNF fine threading delivers superior vibration resistance and secure fastening in precision assemblies
• Class 2A thread fit ensures smooth installation and consistent engagement with mating components
• External hex drive design allows for high torque application with standard tools
• Full threading provides maximum grip length and uniform stress distribution

Professional Applications & Engineering Value

This Grade 5 steel hex head screw with UNF fine threading is engineered to solve critical fastening challenges in heavy machinery, automotive assemblies, and structural applications. The combination of 120,000 psi tensile strength and Rockwell C25 hardness ensures reliable performance under extreme loads and vibration. The zinc plated finish protects against corrosion in outdoor or chemically aggressive environments, while the Class 2A thread fit guarantees precise installation without binding. The external hex drive accommodates high-torque applications, making it ideal for maintenance operations and production lines where consistent, secure fastening is paramount for operational safety and equipment longevity.

Specification Summary & Compliance

Manufactured to Class 2A thread fit tolerance standards with UNF fine threading (1/4"-28). Fully compliant with ASME B18.2.1 and SAE J429 specifications for dimensional accuracy and mechanical properties. Meets RoHS 3 (2015/863/EU) environmental compliance requirements, ensuring safe use across various industrial sectors.