S-92865A282 5/8"-11 x 8" 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
• Zinc plating provides superior corrosion resistance, extending service life in harsh industrial and outdoor environments
• Grade 5 steel construction with Rockwell C25 hardness offers excellent durability and wear resistance for repeated use
• Coarse UNC threading with Class 2A fit enables quick installation and secure fastening in various materials
• Fully threaded design allows for maximum grip length and adjustable positioning in assembly applications
• External hex drive and standard head dimensions provide compatibility with common tools for efficient installation and removal
• Compliance with ASME B18.2.1 and SAE J429 specifications guarantees consistent quality and interchangeability in professional applications

Professional Applications & Engineering Value

These Grade 5 hex head screws deliver critical engineering value in demanding industrial, construction, and manufacturing environments where fastener reliability is paramount. The combination of high-strength steel material and zinc plating finish addresses common challenges of structural integrity and environmental degradation. The coarse UNC thread pattern with Class 2A fit ensures rapid installation while maintaining vibration resistance in heavy machinery, structural steel connections, and equipment assembly. The fully threaded design provides maximum engagement surface area, distributing load evenly and preventing joint loosening under dynamic stresses. These external hex drive fasteners with standardized dimensions integrate seamlessly into existing maintenance protocols and tool systems.

Specification Summary & Compliance

This 5/8"-11 UNC hex head screw features precise Class 2A thread fit tolerances ensuring proper engagement and interchangeability. Manufactured to ASME B18.2.1 specifications where identified under SAE J429 standards, guaranteeing dimensional consistency and mechanical properties. The product is RoHS 3 (2015/863/EU) Compliant, meeting environmental regulations for hazardous substance restrictions in industrial components.