S-90738A230 1"-14 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
• High-strength performance from Grade 5 certification, ensuring reliable load-bearing capacity for demanding applications
• Precise left-hand threading with 1"-14 extra fine UNS profile, providing secure fastening in specialized machinery and reverse-rotation systems
• Superior thread engagement through Class 2B fit, minimizing backlash and vibration-induced loosening
• Easy installation and removal with standard external hex drive design, compatible with common wrench tools
• Environmental compliance assurance meeting RoHS 3 and REACH standards, supporting sustainable procurement policies
• Optimized dimensional stability with 1-1/2" width and 55/64" height, maintaining consistent performance under thermal and mechanical stress

Professional Applications & Engineering Value

This Grade 5 zinc-plated steel hex nut delivers critical engineering solutions where reverse-thread security and fine adjustment capabilities are paramount. The left-hand extra fine thread (1"-14 UNS) prevents unintended loosening in rotating equipment while enabling precise tension control in high-vibration environments like industrial machinery, automotive systems, and conveyor assemblies. The zinc plating creates a sacrificial barrier against oxidation and chemical exposure, significantly extending maintenance intervals in outdoor or corrosive settings. Combined with the Class 2B thread fit, this fastener maintains clamping force integrity under dynamic loads, reducing downtime and replacement costs across manufacturing, construction, and transportation sectors.

Specification Summary & Compliance

Manufactured to exacting standards with Class 2B thread fit tolerances and UNS extra fine thread specifications (1"-14 left hand). Complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental directives. Dimensions: 1-1/2" width, 55/64" height. Grade 5 strength classification ensures consistent mechanical properties for industrial applications.