S-92620A352 1 1/2"-6 x 14" 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 under extreme loads, reducing the risk of fastener failure in demanding applications.
• Superior corrosion resistance from zinc yellow-chromate plating extends service life and maintains integrity in harsh or outdoor environments.
• High hardness rating (Rockwell C33) provides excellent wear resistance and durability, minimizing deformation during installation and use.
• Coarse UNC threading allows for faster assembly and better performance in materials prone to stripping or where vibration is a concern.
• Partially threaded design offers optimal clamping force distribution, ideal for applications requiring precise joint security.
• Class 2A thread fit ensures consistent, easy assembly while maintaining strong holding power, improving installation efficiency.
• External hex drive enables high-torque application with standard tools, facilitating quick and secure fastening in industrial settings.

Professional Applications & Engineering Value

This Grade 8 hex head screw is engineered to address critical challenges in heavy machinery, structural steel connections, and industrial equipment assembly. The 1 1/2"-6 UNC coarse thread provides superior grip in thick materials and resists loosening under vibration, a common issue in construction and manufacturing. Made from high-strength steel and finished with zinc yellow-chromate plating, it combats corrosion in environments exposed to moisture or chemicals, reducing maintenance needs. The 14" length and partial threading allow for effective use in bolted joints where shear strength and clamp load are paramount, ensuring long-term reliability in bridges, conveyor systems, and heavy-duty frameworks. Its design meets rigorous engineering standards, making it a trusted choice for professionals requiring high tensile strength and durability.

Specification Summary & Compliance

This fastener adheres to precise dimensional standards with a Class 2A thread fit for consistent assembly and UNC coarse threading (1 1/2"-6) per industry norms. It meets ASME B18.2.1 and SAE J429 specifications for Grade 8 bolts, ensuring high strength and reliability. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms it is free from hazardous substances, supporting safe and sustainable industrial use.