S-96177A170 1/4"-20 x 1 1/4" ASTM A276 Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel coating, extending service life in harsh industrial environments
• Precise Class 2B thread fit ensures smooth assembly and reliable connections without cross-threading risks
• Full UNC coarse threading provides faster installation and increased vibration resistance in heavy-duty applications
• ASTM A276 material compliance guarantees consistent mechanical properties and structural integrity
• RoHS 3 and REACH compliance meets international environmental standards for safe industrial usage
• Standard 1-1/4" length design offers optimal engagement for secure rod-to-rod or extended fastener connections

Professional Applications & Engineering Value

This 1/4"-20 UNC coupling nut delivers critical performance in demanding assembly scenarios where corrosion resistance and thread reliability are paramount. The black-oxide steel construction combined with fully threaded coarse spacing prevents seizing in high-vibration environments like machinery frames, conveyor systems, and structural supports. Engineers specify these ASTM A276 compliant nuts for their consistent Class 2B thread fit, which eliminates play in precision assemblies while maintaining industrial-grade durability. The right-hand threading aligns with standard equipment protocols, streamlining maintenance and reducing installation errors in heavy-duty coupling applications.

Specification Summary & Compliance

Manufactured to ASTM A276 standards with Class 2B thread fit and UNC coarse threading (1/4"-20). Dimensions include 23/64" OD and 1-1/4" length. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) and REACH (EC 1907/2006) regulations as of 01/17/2023.