S-90242A616 7/16"-20 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide 316 Stainless Steel construction, ideal for harsh environments and chemical exposure.
• Enhanced thread engagement and vibration resistance due to UNF fine threading (20 TPI), providing more reliable fastening in dynamic applications.
• Consistent and precise assembly ensured by Class 2B thread fit, facilitating smooth installation and reducing cross-threading risks.
• High torque capability and easy installation with a standard external hex drive profile, compatible with common wrenches and sockets.
• Durable, long-lasting performance from the robust 316 stainless steel material, maintaining integrity under mechanical stress and temperature variations.
• Environmental and regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in regulated industries and global markets.
• Wide industrial applicability thanks to inch system sizing (7/16"-20) and right-hand threading, meeting common North American and international specifications.

Professional Applications & Engineering Value

This 7/16"-20 UNF hex nut is engineered to address critical challenges in industrial and marine settings where corrosion resistance and thread reliability are paramount. The Black-Oxide 316 Stainless Steel material provides exceptional protection against rust and chemical degradation, making it suitable for offshore equipment, food processing machinery, and chemical plants. The UNF fine thread design offers increased tensile strength and better load distribution compared to coarse threads, reducing the risk of loosening under vibration—common in automotive, aerospace, and heavy machinery assemblies. Combined with a Class 2B thread fit, this nut ensures precise, repeatable fastening without galling, streamlining maintenance and enhancing operational safety in high-stress environments.

Specification Summary & Compliance

This hex nut adheres to UNF (Unified National Fine) thread standards with a size of 7/16"-20 and Class 2B thread fit for consistent dimensional accuracy. Key specifications include a width of 11/16", height of 3/8", right-hand thread direction, and external hex drive style. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in environmentally conscious applications across various sectors.