S-94895A374 9/16"-18 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional tensile strength with Grade 8 classification, ensuring reliable performance in high-stress industrial applications
• Superior corrosion resistance from the black-oxide steel finish, extending service life in harsh environments
• Precise thread engagement with UNF fine threads (9/16"-18) and Class 2B fit, reducing vibration loosening risks
• Standard hex profile and external drive design for easy installation using common wrench tools
• Right-hand threading compatibility with standard assembly processes, streamlining maintenance operations
• Full regulatory compliance with RoHS 3 and REACH standards, meeting global environmental and safety requirements
• Consistent dimensional accuracy with 7/8" width and 31/64" height, ensuring interchangeability in inch-system assemblies

Professional Applications & Engineering Value

This Grade 8 hex nut delivers critical engineering advantages where failure is not an option. The black-oxide steel construction provides enhanced corrosion protection for machinery exposed to moisture, chemicals, or outdoor elements, while the UNF fine threads (9/16"-18) offer superior resistance to vibrational loosening in dynamic equipment. With its Class 2B thread fit, this fastener ensures smooth assembly without galling in high-cycle production environments. Ideal for heavy machinery, automotive systems, and structural applications, this external hex drive nut enables quick servicing with standard tools, reducing downtime in maintenance-intensive operations. The combination of high-strength material and precision manufacturing makes it a trusted component for engineers specifying reliable fastening solutions.

Specification Summary & Compliance

Manufactured to exacting standards with Class 2B thread fit tolerances for consistent performance. Thread specifications conform to UNF (Unified National Fine) standards with 9/16"-18 thread size. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Dimensions include 7/8" width and 31/64" height in the inch measurement system. Meets Grade 8 strength classification requirements for heavy-duty applications.