S-93839A029 1/4"-20 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional tensile strength with Grade 8 classification ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Enhanced corrosion resistance from zinc yellow-chromate plating extends service life in harsh or outdoor environments, minimizing maintenance needs.
• Space-saving thin profile allows installation in tight or restricted spaces where standard nuts cannot fit, improving design flexibility.
• Precise UNC coarse threading with Class 2B fit provides smooth, secure engagement and reduces cross-threading during assembly, speeding up installation.
• High torque capability from the external hex drive design enables easy tightening with standard tools, ensuring consistent clamping force.
• Compliance with ASME B18.2.2 standards guarantees dimensional accuracy and interchangeability, supporting quality assurance in industrial projects.
• Right-hand thread direction offers compatibility with common assembly practices, streamlining workflow and reducing errors.

Professional Applications & Engineering Value

This Grade 8 hex nut is engineered to address critical challenges in heavy-duty and industrial settings, where vibration, high loads, and environmental exposure can compromise fastener integrity. The zinc yellow-chromate-plated steel construction delivers superior corrosion protection, making it ideal for machinery, automotive, and construction applications exposed to moisture or chemicals. Its thin profile and UNC coarse threads ensure quick, reliable fastening even in confined spaces, while the Class 2B thread fit minimizes the risk of stripping or loosening under dynamic stresses. By meeting ASME B18.2.2 specifications, this nut provides consistent performance in assemblies requiring high strength and durability, reducing downtime and maintenance costs for engineers and procurement teams.

Specification Summary & Compliance

This hex nut features a 1/4"-20 UNC coarse thread with Class 2B thread fit for precise dimensional tolerance, ensuring compatibility with standard bolts. Key dimensions include a width of 7/16" and height of 5/32" in a thin profile design. Manufactured in compliance with ASME B18.2.2 standards, it adheres to industrial quality and safety requirements. The material and plating are typically RoHS and REACH compliant, supporting use in regulated environments.