S-92327A317 1/2"-13 x 5" ASME B18.2.1, SAE J429 Square Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 120,000 psi ensures reliable performance in demanding applications, preventing fastener failure under high stress.
• Superior corrosion resistance provided by the zinc yellow-chromate plating, extending service life in harsh or outdoor industrial environments.
• High hardness rating of Rockwell C25 offers excellent wear resistance and durability, maintaining thread integrity through repeated use.
• Coarse UNC threading allows for faster installation and better performance in materials where fine threads might strip or clog.
• External square drive design provides a secure grip for high-torque applications, reducing the risk of tool slippage and damage.
• Full threading along the 5-inch length ensures maximum grip and adjustability, offering versatile fastening solutions across various material thicknesses.
• Compliance with ASME B18.2.1 and SAE J429 standards guarantees consistent quality, dimensional accuracy, and interoperability with other standardized components.

Professional Applications & Engineering Value

This Grade 5 Square Head Screw is engineered to address critical challenges in heavy-duty industrial applications, such as construction machinery, agricultural equipment, and structural assemblies. The zinc yellow-chromate plated steel construction combats rust and corrosion, significantly reducing maintenance costs and downtime in exposed or high-moisture environments. Its 1/2"-13 UNC coarse thread and external square drive facilitate quick, secure installation even in tough materials, minimizing assembly time while providing a robust connection. With a tensile strength of 120,000 psi and Rockwell C25 hardness, it withstands substantial vibrational and dynamic loads, ensuring long-term reliability in demanding settings where fastener integrity is paramount.

Specification Summary & Compliance

This fastener adheres to Unified Standard Class 2A thread fit for consistent dimensional accuracy and ease of assembly. It meets ASME B18.2.1 and SAE J429 specifications, ensuring compliance with industry standards for material properties and mechanical performance. The zinc yellow-chromate plating offers enhanced corrosion protection, aligning with common industrial requirements for durability and environmental resistance.