S-94288A522 1/2"-13 x 2 1/2" Extreme-Strength Stainless Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 450 Stainless Steel construction, ideal for harsh industrial environments and outdoor applications.
• Superior mechanical strength with a 170,000 psi tensile strength and Rockwell C38 hardness, ensuring reliable performance under high-stress conditions.
• Secure and stable fastening provided by the integrated flange, which distributes load evenly and acts as a built-in washer.
• Efficient installation and removal with the external hex drive and standard 1/2"-13 UNC coarse thread, compatible with common tools.
• Precise thread engagement guaranteed by the Class 2A thread fit, reducing the risk of cross-threading and ensuring consistent assembly.
• Optimized for specific applications with a 2 1/2" length and partial threading, offering flexibility in grip range and unthreaded shank strength.
• Durable and long-lasting performance due to the robust material and design, minimizing maintenance and replacement needs.

Professional Applications & Engineering Value

This 1/2"-13 UNC Hex Head Screw is engineered to address critical challenges in heavy-duty and industrial settings. Constructed from 450 Stainless Steel, it offers excellent resistance to corrosion and oxidation, making it suitable for applications in marine, chemical processing, and construction industries where environmental factors can degrade lesser materials. The coarse thread (UNC) design ensures quick assembly and reliable holding power in softer materials or where vibration resistance is paramount. The flanged head eliminates the need for a separate washer, reducing part count and installation time while providing a larger bearing surface to prevent pull-through in sheet metal or plastic components. With a partial threading configuration, it provides an unthreaded shank for enhanced shear strength, ideal for structural connections in machinery, transportation equipment, and infrastructure projects. This screw delivers consistent performance, reducing downtime and ensuring safety in demanding applications.

Specification Summary & Compliance

This screw adheres to inch system standards with precise dimensions: 1/2"-13 UNC thread, Class 2A thread fit for consistent tolerance, and a length of 2 1/2". It features a right-hand thread direction, external hex drive, and is manufactured from 450 Stainless Steel, compliant with industry norms for mechanical properties. While specific certifications are not listed, it is designed to meet general industrial requirements for quality and performance, potentially aligning with standards such as ASME for fasteners. Always verify compliance with project-specific regulations like RoHS or REACH if applicable.