S-92620A729 1/2"-13 x 5" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional Tensile Strength: With a 150,000 psi tensile strength, this screw provides reliable performance under extreme loads, reducing the risk of fastener failure in critical applications.
• Superior Corrosion Resistance: The zinc yellow-chromate plating offers excellent protection against rust and corrosion, extending the service life in harsh industrial environments.
• High Hardness for Durability: Rockwell C33 hardness ensures the screw maintains its integrity and resists wear, even under repetitive stress and vibration.
• Optimized Thread Design: UNC coarse threads and Class 2A fit enable quick, secure installation and strong holding power, minimizing assembly time and improving joint reliability.
• Heavy-Duty Construction: Fully threaded 5" length and Grade 8 strength class deliver maximum grip and load distribution, ideal for demanding structural and machinery applications.
• Standard Compliance Assurance: Meets ASME B18.2.1 and SAE J429 specifications, ensuring consistent quality, interchangeability, and compliance with industry standards.
• Easy Installation and Removal: External hex drive and hex head design allow for straightforward tightening with common tools, enhancing efficiency in maintenance and assembly operations.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this Grade 8 hex head screw addresses common challenges such as joint failure, corrosion, and high-stress fatigue. The steel material combined with zinc yellow-chromate plating provides a robust barrier against environmental factors, making it suitable for outdoor machinery, construction equipment, and automotive assemblies where exposure to moisture and chemicals is a concern. The 1/2"-13 UNC coarse thread and fully threaded design ensure deep engagement and uniform stress distribution, reducing the likelihood of loosening under dynamic loads. By adhering to ASME B18.2.1 standards, this fastener offers predictable performance, simplifying procurement and installation for engineers and procurement specialists focused on reliability and compliance in industrial fasteners.

Specification Summary & Compliance

This product features precise Class 2A thread fit for consistent assembly and meets ASME B18.2.1 and SAE J429 specifications, ensuring dimensional accuracy and performance reliability. It complies with common industry regulations, including RoHS and REACH, for environmental safety. Key specifications include a 1/2"-13 UNC coarse thread, 5" length, and external hex drive, all manufactured to support heavy-duty use with high tensile and hardness properties.