S-92620A258 1"-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

• Exceptional tensile strength of 150,000 psi ensures reliable performance under extreme loads, reducing the risk of fastener failure in critical applications.
• Superior corrosion resistance from zinc yellow-chromate plating extends service life, even in harsh or outdoor industrial environments.
• Precision Class 2A thread fit with extra fine 1"-14 spacing provides secure, vibration-resistant fastening and minimizes loosening in dynamic assemblies.
• High hardness (Rockwell C33) enhances wear resistance and durability, maintaining thread integrity through repeated use and high-stress conditions.
• Fully threaded design offers maximum grip and adjustability along the entire 1 1/2" length, accommodating various material thicknesses.
• External hex drive and standard hex head allow for easy installation and high torque application with common tools, speeding up assembly processes.
• Compliance with ASME B18.2.1 and SAE J429 standards guarantees consistent quality, interchangeability, and reliability for engineering and procurement teams.

Professional Applications & Engineering Value

These Grade 8 hex head screws are engineered to address demanding industrial challenges where high tensile strength and vibration resistance are paramount. The extra fine thread spacing (1"-14) and Class 2A fit ensure tight, precise fastening in machinery, heavy equipment, and structural assemblies, reducing maintenance needs and downtime. Made from high-grade steel and finished with zinc yellow-chromate plating, they offer excellent protection against corrosion, making them ideal for automotive, construction, and manufacturing sectors. The fully threaded design and external hex drive facilitate quick, secure installations, supporting efficient production workflows and long-term operational safety.

Specification Summary & Compliance

This product features a 1"-14 extra fine thread with Class 2A thread fit per UNS standards, ensuring precise dimensional accuracy and compatibility. It meets ASME B18.2.1 and SAE J429 specifications for hex head screws, confirming adherence to industry manufacturing and performance guidelines. The screw is fully threaded, with a length of 1 1/2", head width of 1 1/2", and head height of 5/8", designed for consistent application in heavy-duty fastening. Materials and processes comply with relevant regulations for quality and safety in industrial use.