S-94758A665 5/8"-18 Flange Nuts

Key Features & Benefits at a Glance

• Enhanced load distribution with 1-3/8" flange diameter prevents surface damage and loosening under vibration
• Superior corrosion resistance from 18-8 Stainless Steel ensures longevity in harsh industrial environments
• Precise Class 2B thread fit provides smooth assembly and reliable engagement with mating components
• External hex drive design enables easy installation with standard wrenches for maintenance efficiency
• Fine UNF threading (5/8"-18) offers better vibration resistance and sealing compared to coarse threads
• Right-hand threading compatibility with standard industrial equipment simplifies replacement and inventory management
• Full regulatory compliance with RoHS 3 and REACH standards ensures environmental responsibility and global market acceptance

Professional Applications & Engineering Value

This 5/8"-18 UNF flange nut delivers critical engineering solutions where vibration resistance and corrosion protection are paramount. The integrated 1-3/8" flange eliminates the need for separate washers while distributing clamp load over a wider surface area, preventing joint loosening in heavy machinery, automotive assemblies, and structural applications. Manufactured from 18-8 Stainless Steel, it maintains integrity in moist or chemical-exposed environments where carbon steel fasteners would fail. The Class 2B thread fit and UNF fine threading provide superior engagement in precision equipment, while the external hex drive accommodates high-torque installation with common tools. These features make it ideal for OEM manufacturing, maintenance operations, and industrial equipment where reliability and compliance with RoHS and REACH standards are required.

Specification Summary & Compliance

This flange nut features 5/8"-18 UNF fine threads with Class 2B tolerance per Unified Thread Standard specifications. The standard hex nut profile (1-1/16" width) and external hex drive ensure compatibility with inch-system tools. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming absence of restricted substances. Physical dimensions include 13/16" height and 0.19" flange thickness for consistent performance in demanding applications.