S-90242A625 1/2"-13 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with Black-Oxide 316 Stainless Steel, ideal for harsh environments and extended service life.
• Superior thread engagement and reliability due to the Class 2B thread fit, reducing the risk of cross-threading and ensuring a secure connection.
• Robust coarse (UNC) threading provides faster assembly and is less prone to fouling in dirty or debris-filled applications.
• High-strength external hex drive design allows for high torque application with standard tools, preventing rounding and tool slippage.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global industrial supply chains.
• Standard hex nut profile and right-hand thread offer universal compatibility and ease of installation in a wide range of machinery and equipment.
• Durable construction with precise dimensions (3/4" width, 7/16" height) guarantees consistent performance and interchangeability.

Professional Applications & Engineering Value

This heavy-duty 1/2"-13 UNC hex nut is engineered to solve critical challenges in demanding industrial settings. The core of its value lies in the Black-Oxide 316 Stainless Steel material, which provides an exceptional barrier against corrosion from chemicals, saltwater, and extreme weather, significantly reducing maintenance costs and failure rates in marine, chemical processing, and outdoor infrastructure. The coarse thread design is particularly advantageous in applications where vibration is a concern, as it maintains a tighter grip and resists loosening better than fine threads. Combined with the Class 2B thread fit, it ensures a perfect balance between ease of assembly and a vibration-resistant, secure fit, making it an indispensable industrial fastener for construction, heavy machinery, and transportation equipment where reliability is non-negotiable.

Specification Summary & Compliance

This hex nut conforms to Unified Coarse (UNC) thread standards with a Class 2B thread fit, ensuring dimensional accuracy and interchangeability. The manufacturing and material composition are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its safety for use in regulated industries. Key dimensional specifications include a 1/2"-13 thread size, 3/4" width across flats, and a 7/16" height.