S-92327A117 5/8"-11 x 6" ASME B18.2.1, SAE J429 Square Head Screws

Key Features & Benefits at a Glance

• Enhanced Durability - SAE Grade 5 classification with 120,000 psi tensile strength and Rockwell C25 hardness ensures reliable performance in demanding applications
• Superior Corrosion Protection - Zinc Yellow-Chromate plating provides excellent resistance against rust and environmental degradation
• Optimized Thread Engagement - Unified Standard Class 3A thread fit guarantees precise mating and vibration resistance in critical assemblies
• Easy Installation & Removal - External square drive head design allows for high-torque application with standard wrench tools
• Versatile Fastening Solution - 6" length with partial threading offers flexibility for both structural and adjustable applications
• Industry Standard Compliance - Manufactured to ASME B18.2.1 and SAE J429 specifications for consistent quality and interchangeability
• Coarse Thread Advantage - 5/8"-11 UNC thread pattern enables quick assembly and reduced cross-threading risks

Professional Applications & Engineering Value

This Grade 5 Square Head Screw delivers exceptional engineering value for industrial and construction applications where medium-strength fastening is critical. The steel construction combined with Zinc Yellow-Chromate plating addresses common corrosion challenges in outdoor or harsh environments, significantly extending service life. The 5/8"-11 UNC coarse thread configuration provides superior resistance to vibration loosening while facilitating rapid assembly in structural steel, machinery, and heavy equipment applications. The external square drive design enables high-torque installation without cam-out issues, making it ideal for applications requiring substantial clamping force. Partial threading allows for precise adjustment and secure fastening in assemblies where both threaded and unthreaded sections provide optimal load distribution.

Specification Summary & Compliance

This square head screw features precise Unified Standard Class 3A thread tolerances with 5/8"-11 UNC coarse thread specification. The fastener maintains dimensional accuracy per ASME B18.2.1 manufacturing standards and meets SAE J429 Grade 5 mechanical requirements, including 120,000 psi tensile strength and Rockwell C25 hardness. The 6" length with 1 1/2" minimum thread length ensures proper engagement while the zinc yellow-chromate plating provides RoHS-compliant corrosion protection suitable for industrial applications.