S-94855A135 3/8"-16 Square Nuts

Key Features & Benefits at a Glance

• Enhanced Grip and Stability: The external square drive design provides superior torque resistance, reducing the risk of slipping during installation in high-vibration environments.
• Superior Durability: Constructed from high-strength steel, this nut offers excellent resistance to wear, corrosion, and mechanical stress for long-lasting performance.
• Reliable Thread Engagement: Class 2B thread fit ensures consistent, secure fastening with standard UNC coarse threads, minimizing cross-threading and assembly errors.
• Quick and Easy Installation: Coarse 3/8"-16 UNC threads allow for faster assembly and disassembly, saving time in maintenance and production workflows.
• Optimized for Industrial Use: With a 5/8" width and 1/4" height, it provides a sturdy, low-profile fit for machinery, equipment, and structural applications.
• Environmental Compliance: Meets RoHS 3 and REACH standards, ensuring safe, eco-friendly use without hazardous substances in regulated industries.
• Versatile Right-Hand Threading: Standard right-hand thread direction ensures compatibility with common bolts and tools, streamlining inventory and repair processes.

Professional Applications & Engineering Value

This heavy-duty square nut is engineered to address common industrial challenges such as loosening under dynamic loads and corrosion in harsh environments. Made from high-strength steel, it withstands extreme forces in machinery, automotive, and construction applications. The external square drive allows for secure tool engagement, preventing rounding and enabling high-torque tightening without damage. Its UNC coarse threads and Class 2B thread fit provide reliable, repeatable fastening, reducing downtime and maintenance costs. Ideal for use in assembly lines, agricultural equipment, and metal frameworks, this nut ensures consistent performance where durability and precision are critical. The right-hand thread design further simplifies integration with standard components, enhancing workflow efficiency.

Specification Summary & Compliance

This square nut adheres to inch system measurements with a thread size of 3/8"-16 UNC and coarse thread spacing. It features a Class 2B thread fit for standard tolerance, ensuring compatibility with Class 2A external threads per common engineering specifications. The nut is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted substances for safe industrial and commercial use.