S-98694A211 1/4"-20 Square Nuts

Key Features & Benefits at a Glance

• Superior load distribution due to the square design, preventing rotation and loosening under vibration in heavy machinery
• Exceptional strength and durability from Grade 5 steel, suitable for high-stress industrial applications
• Fast and easy assembly with the external square drive, allowing for high-torque installation with common wrenches
• Reliable thread engagement ensured by the 1/4"-20 UNC coarse thread and Class 2B fit, reducing cross-threading risks
• Broad compatibility with standard 1/4"-20 UNC bolts and components in the inch measurement system
• Safe for regulated environments as it is RoHS 3 and REACH compliant, meeting strict international substance restrictions
• Optimized for right-hand thread applications, providing secure fastening in standard assembly directions

Professional Applications & Engineering Value

This Grade 5 steel square nut is engineered to address critical challenges in industrial fastening, such as vibration-induced loosening and the need for high-strength connections. The square nut design with a 7/16" width provides a larger surface area for superior grip and stability, making it ideal for use in machinery, structural frames, and automotive assemblies where external square drive allows for efficient installation with standard tools. The 1/4"-20 UNC coarse threads facilitate quick alignment and reduce the risk of stripping, while the Class 2B thread fit ensures consistent performance in demanding conditions. Its right-hand thread direction and robust steel construction deliver long-term reliability, minimizing maintenance needs in heavy-duty applications.

Specification Summary & Compliance

This square nut adheres to UNC (Unified Coarse) thread standards with a Class 2B thread fit for consistent dimensional accuracy and ease of assembly. It is manufactured from high-strength Grade 5 steel, ensuring compliance with industry performance requirements. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environments with strict environmental and health safety standards.