S-91819A110 1/4"-20 ASME B1.1, ASME B18.2.2, SAE J995 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional strength and reliability with Grade 8 classification, ensuring high load-bearing capacity for demanding industrial applications.
• Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh environments.
• Precise and secure thread engagement with Class 2B fit and coarse UNC thread, reducing the risk of cross-threading and ensuring consistent performance.
• Broad compatibility and standardization meeting ASME B1.1, ASME B18.2.2, and SAE J995, guaranteeing interchangeability and quality assurance.
• Environmental and regulatory compliance with RoHS 3 and REACH, making them safe for use in regulated industries and global markets.
• Easy installation and removal thanks to the standard external hex drive and 7/16" width, allowing for efficient assembly with common tools.
• Optimized for heavy-duty use with right-hand coarse threading (1/4"-20 UNC), providing robust holding power in vibration-prone settings.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these Grade 8 hex nuts deliver unmatched durability and reliability in sectors like automotive, machinery, and construction. The zinc yellow-chromate plated steel construction offers excellent corrosion resistance, crucial for outdoor or high-moisture environments where fastener failure is not an option. With a coarse UNC thread and Class 2B thread fit, these nuts ensure quick, secure fastening that resists loosening under vibration, reducing maintenance needs and downtime. Compliance with ASME B18.2.2 and other standards means they integrate seamlessly into existing assemblies, providing peace of mind for engineers and procurement specialists focused on safety and performance.

Specification Summary & Compliance

This 1/4"-20 UNC hex nut features a Class 2B thread fit for consistent engagement and is manufactured in accordance with ASME B1.1, ASME B18.2.2, and SAE J995 specifications. Dimensions include a width of 7/16" and height of 7/32". The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use.