S-92620A673 7/16"-14 x 1 1/2" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Maximum Load-Bearing Capacity: With a tensile strength of 150,000 psi and Rockwell C33 hardness, these screws provide exceptional resistance to shear and tensile forces, ensuring reliable performance in high-stress environments.
• Superior Corrosion Protection: The zinc yellow-chromate plating offers enhanced defense against rust and environmental degradation, extending the fastener's service life in harsh industrial conditions.
• Effortless Installation & Removal: The external hex head design allows for easy torque application with standard tools, reducing assembly time and minimizing the risk of stripping.
• Optimized Thread Engagement: Coarse UNC threading and Class 2A thread fit ensure quick, secure fastening with reduced cross-threading risk, ideal for rapid assembly lines.
• Full-Length Threading for Versatility: Fully threaded design provides consistent holding power along the entire shank, accommodating various material thicknesses without compromising grip.
• Heavy-Duty Material Integrity: Manufactured from high-strength Grade 8 steel, these screws maintain structural integrity under extreme vibration and dynamic loads.
• Regulatory Compliance Assurance: Meets ASME B18.2.1 and SAE J429 standards, ensuring dimensional accuracy and performance reliability for critical applications.

Professional Applications & Engineering Value

These Grade 8 hex head screws are engineered to address common industrial challenges such as joint failure under heavy loads and corrosion-induced weakening. The high-strength steel construction, combined with coarse UNC threading, ensures secure fastening in structural steel frameworks, heavy machinery, and automotive assemblies where vibration resistance is critical. The zinc yellow-chromate plating provides a robust barrier against moisture and chemicals, making these fully threaded fasteners ideal for outdoor equipment, construction projects, and marine applications. By utilizing Class 2A thread fit precision, they prevent loosening in dynamic environments while simplifying maintenance. Their compliance with ASME B18.2.1 guarantees interchangeability and consistent performance in OEM and MRO scenarios, reducing downtime and replacement costs.

Specification Summary & Compliance

This 7/16"-14 UNC hex head screw adheres to Class 2A thread fit tolerances for precise engagement and is manufactured per ASME B18.2.1 and SAE J429 Grade 8 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability. The fastener's 1-1/2" length and external hex drive design meet industry standards for dimensional accuracy and tool compatibility.