S-91855A490 7/16"-20 Cap Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments
• Precise thread engagement with Class 2B thread fit for secure fastening and reduced risk of cross-threading during assembly
• Enhanced torque application through external hex drive design, allowing for efficient installation with standard tools
• Fine thread spacing (20 TPI) provides superior vibration resistance and improved load distribution in critical applications
• Full thread coverage with 7/16" thread depth for maximum grip strength and connection integrity
• Regulatory compliance assurance with RoHS 3 and REACH standards, meeting international environmental and safety requirements
• Standard profile design with 5/8" width and 11/16" height ensures compatibility with existing tooling and assembly processes

Professional Applications & Engineering Value

This 7/16"-20 UNF cap nut delivers exceptional engineering value through its 18-8 stainless steel composition and Class 2B thread fit, specifically designed to address common industrial fastening challenges. The fine thread spacing and right-hand thread direction provide superior vibration resistance in dynamic applications such as machinery, automotive assemblies, and precision equipment. The external hex drive enables quick installation and removal while maintaining torque integrity, significantly reducing assembly time in production environments. The corrosion-resistant properties of 18-8 stainless steel make this cap nut ideal for applications exposed to moisture, chemicals, or outdoor conditions, ensuring long-term performance without degradation. The standard profile and inch system measurement ensure seamless integration into existing North American industrial specifications.

Specification Summary & Compliance

This cap nut features 7/16"-20 UNF fine threads with Class 2B thread fit precision, manufactured to standard inch system dimensions (5/8" width × 11/16" height). The product maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence. The right-hand thread direction and external hex drive configuration follow industry-standard specifications for reliable performance in demanding industrial applications.