S-92327A824 1/2"-13 x 3 1/2" ASME B18.2.1, SAE J429 Square Head Screws

Key Features & Benefits at a Glance

• Enhanced corrosion protection with zinc yellow-chromate plating for extended service life in harsh environments
• Superior load-bearing capacity from SAE Grade 5 rating and 120,000 psi tensile strength for reliable medium-strength applications
• Excellent thread engagement through UNC coarse threading and Class 3A fit, ensuring secure fastening in demanding conditions
• Optimized torque transmission with external square drive design for easy installation and removal with standard tools
• Consistent hardness and durability with Rockwell C25 rating, providing resistance to wear and deformation
• Full-threaded design for maximum grip along the entire length, enhancing holding power in various materials
• Industry-standard compliance meeting ASME B18.2.1 and SAE J429 specifications for assured quality and interchangeability

Professional Applications & Engineering Value

This 1/2"-13 UNC Grade 5 square head screw is engineered to address critical fastening challenges in industrial and construction settings. The zinc yellow-chromate plated steel construction provides robust corrosion resistance, reducing maintenance needs in exposed or humid environments. Its coarse thread design and full threading ensure rapid installation and superior pull-out resistance in wood, metal, and composite materials, making it ideal for machinery assembly, structural frameworks, and heavy equipment. The external square drive allows for high-torque application without slippage, enhancing efficiency in tight spaces. By combining medium strength with durability, this screw delivers reliable performance in applications requiring repeated disassembly and reassembly, minimizing downtime and replacement costs.

Specification Summary & Compliance

This screw features precise Unified Standard Class 3A thread fit and 1/2"-13 UNC coarse threads for consistent engagement. It complies with ASME B18.2.1 and SAE J429 standards, ensuring dimensional accuracy and mechanical properties. The zinc yellow-chromate plating meets RoHS and REACH environmental guidelines, providing a safe and durable finish. With a length of 3 1/2" and full threading, it maintains tight tolerances for reliable performance in standardized industrial applications.