S-96177A580 5/8"-18 x 2" ASTM A108 Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel finish, ideal for harsh industrial environments
• Precise thread engagement with Class 2B fine threading ensures reliable, vibration-resistant connections
• Full-length threading provides maximum adjustability and load distribution across the entire nut
• Heavy-duty construction meets ASTM A108 standards for consistent mechanical performance
• Wide compatibility with 5/8"-18 UNF right-hand threaded rods and components
• Environmental compliance with RoHS 3 and REACH regulations for safe industrial use
• Optimized dimensions (2" length, 55/64" OD) offer balanced strength-to-weight ratio

Professional Applications & Engineering Value

This black-oxide steel coupling nut delivers critical performance in demanding applications where corrosion resistance and thread integrity are paramount. The fully threaded UNF fine thread design maintains consistent clamping force in high-vibration environments like machinery assemblies, automotive systems, and structural frameworks. The Class 2B thread fit ensures smooth engagement with mating components while the ASTM A108 compliance guarantees material consistency for load-bearing applications. Its 2-inch length provides sufficient thread engagement for extended connections between threaded rods, making it indispensable in construction, manufacturing, and maintenance operations requiring reliable, long-lasting couplings.

Specification Summary & Compliance

Manufactured to ASTM A108 standards with Class 2B thread fit and 5/8"-18 UNF fine threading. Dimensions include 2" length and 55/64" OD. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) and REACH (EC 1907/2006) regulations (SVHC list as of 01/17/2023).