S-92865A744 1/2"-13 x 9" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 120,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in critical applications.
• Superior corrosion resistance provided by zinc plating extends service life and maintains integrity in harsh or outdoor industrial environments.
• Full threading design maximizes grip and holding power along the entire 9" length, offering uniform load distribution and enhanced joint security.
• Precision Class 2A thread fit with UNC coarse threads allows for easier, faster assembly while maintaining strong engagement and reducing cross-threading risks.
• High hardness (Rockwell C25) and Grade 5 classification deliver consistent durability and resistance to wear, deformation, and shear forces.
• External hex drive and hex head enable secure, high-torque installation with common tools, streamlining maintenance and assembly processes.
• Compliance with ASME B18.2.1 and SAE J429 standards guarantees dimensional accuracy, interchangeability, and reliability for professional and regulated uses.

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this Grade 5 hex head screw combines high-strength steel and a zinc-plated finish to address common challenges like corrosion, vibration loosening, and structural fatigue. The fully threaded and UNC coarse thread design ensures maximum clamping force across the entire shank, making it ideal for heavy machinery, construction frameworks, and equipment assembly where uniform stress distribution is critical. Its external hex drive facilitates quick installation with standard wrenches, reducing labor time while the Class 2A thread fit promotes smooth engagement without compromising on strength. By meeting rigorous specifications, this fastener provides long-term reliability in environments exposed to dynamic loads and environmental factors.

Specification Summary & Compliance

This product adheres to Class 2A thread fit tolerances and UNC thread standards, ensuring precise dimensional alignment as per ASME B18.2.1 and SAE J429 manufacturing specifications. It is RoHS 3 (2015/863/EU) compliant, confirming the absence of restricted hazardous substances, and is suitable for use in regulated industrial and engineering projects requiring verified material and performance consistency.