S-92865A368 1/2"-20 x 5" 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 in high-stress applications, reducing the risk of fastener failure.
• Superior corrosion resistance with zinc plating extends service life in harsh environments, minimizing maintenance and replacement costs.
• Precise UNF fine threading and Class 2A fit provide secure, vibration-resistant connections for stable assemblies.
• High hardness rating (Rockwell C25) offers excellent wear resistance, maintaining thread integrity through repeated use.
• Full threading along the 5" length allows for adjustable engagement depth, enhancing versatility across various material thicknesses.
• External hex drive design enables easy installation and high torque application with standard tools, speeding up assembly processes.
• Compliance with ASME B18.2.1 and RoHS 3 ensures consistent quality and environmental safety for industrial use.

Professional Applications & Engineering Value

This Grade 5 hex head screw is engineered to address critical challenges in heavy machinery, construction, and automotive assemblies where high tensile strength and durability are paramount. The zinc plated steel construction combats corrosion in outdoor or humid conditions, preventing premature degradation. With UNF fine threads and a Class 2A thread fit, it delivers precise, secure fastening that resists loosening under vibration, common in engine components or structural frames. The fully threaded 5-inch length accommodates varying material depths, offering flexibility without compromising the 120,000 PSI tensile strength. Ideal for bolting thick plates or securing heavy loads, this screw ensures long-term reliability while meeting ASME B18.2.1 standards for consistent performance in demanding industrial environments.

Specification Summary & Compliance

This fastener features a 1/2"-20 UNF fine thread with Class 2A dimensional accuracy for consistent fit. It complies with ASME B18.2.1 and SAE J429 Grade 5 specifications, ensuring adherence to industrial manufacturing norms. The product is RoHS 3 (2015/863/EU) Compliant, confirming it meets environmental regulations for hazardous substance restrictions.