S-92327A341 5/8"-11 x 5" ASME B18.2.1, SAE J429 Square Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc yellow-chromate plating for extended service life in harsh industrial environments
• High-strength performance with SAE Grade 5 rating and 120,000 psi tensile strength for demanding applications
• Excellent durability backed by Rockwell C25 hardness to withstand heavy loads and repeated use
• Secure fastening with fully threaded UNC coarse thread design providing maximum grip and holding power
• Easy installation and removal using standard external square drive tools for efficient maintenance
• Precise thread fit with Unified Standard Class 2A tolerance ensuring reliable engagement and vibration resistance
• Industry compliance meeting ASME B18.2.1 and SAE J429 specifications for quality assurance

Professional Applications & Engineering Value

These 5/8"-11 UNC square head screws deliver exceptional engineering value for heavy machinery, construction equipment, and industrial assembly applications. The SAE Grade 5 steel construction provides the necessary strength for structural connections while the zinc yellow-chromate plating offers superior protection against corrosion in demanding environments. The fully threaded coarse UNC design ensures maximum thread engagement and load distribution, preventing loosening under vibration. The external square drive allows for high-torque installation without stripping, making them ideal for maintenance operations where reliability is critical. These industrial-grade fasteners solve common challenges of vibration-induced loosening and environmental degradation while maintaining consistent performance in heavy-duty applications.

Specification Summary & Compliance

This square head screw features 5/8"-11 UNC coarse threads with Unified Standard Class 2A thread fit tolerance for precise engagement. The fastener meets ASME B18.2.1 dimensional specifications and SAE J429 material and mechanical property requirements. Manufactured from high-strength steel with zinc yellow-chromate plating for corrosion protection, the screw delivers 120,000 psi tensile strength and Rockwell C25 hardness. The inch measurement system ensures compatibility with standard industrial equipment and replacement parts.