S-93827A287 1 1/4"-7 Hex Nuts

Key Features & Benefits at a Glance

• Maximum corrosion resistance with zinc-flake coating that provides superior protection in harsh industrial environments
• Exceptional load-bearing capacity thanks to Grade 8 strength classification for heavy-duty applications
• Reliable thread engagement with Class 2B thread fit ensuring consistent performance in demanding assemblies
• Easy installation and removal with standard external hex drive design compatible with common tools
• Durable coarse threading (1 1/4"-7 UNC) that resists cross-threading and maintains integrity under vibration
• Environmental compliance assurance meeting both RoHS 3 and REACH standards for safe usage
• Optimized dimensional stability with precise 1 7/8" width and 1 1/16" height for consistent fitment

Professional Applications & Engineering Value

This Grade 8 heavy-duty hex nut delivers critical performance where high-strength fastening meets corrosive environments. The zinc-flake-coated steel construction provides exceptional barrier protection against rust and chemical exposure, significantly extending service life in industrial machinery, structural steel connections, and heavy equipment assemblies. The 1 1/4"-7 UNC coarse thread configuration ensures rapid installation while maintaining vibration resistance, making it ideal for applications subject to dynamic loads and thermal cycling. With Class 2B thread fit precision, engineers can trust consistent clamping force distribution and reduced risk of thread stripping in critical joints. The external hex drive design accommodates standard wrenching tools for efficient maintenance and field service operations across construction, manufacturing, and transportation sectors.

Specification Summary & Compliance

This heavy-duty hex nut features precise UNC coarse threading (1 1/4"-7) with Class 2B thread fit tolerance for reliable engagement. Manufactured from zinc-flake-coated steel with standard external hex drive (1 7/8" width × 1 1/16" height) and right-hand thread direction. The fastener meets Grade 8 strength classification requirements and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards for restricted substance control.