S-93439A040 1 1/4"-7 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from silicon bronze material, ideal for marine and harsh industrial environments
• Reliable coarse thread engagement with UNC 1 1/4"-7 threading for quick assembly and vibration resistance
• Precise Class 2B thread fit ensures smooth installation and consistent clamping force
• Standard external hex design provides familiar, tool-friendly installation with common wrenches
• Heavy-duty construction with 1 7/8" width and 1 1/16" height for robust load distribution
• Environmental compliance with RoHS 3 and REACH standards for safe industrial usage
• Right-hand thread direction offers standard, intuitive fastening operation

Professional Applications & Engineering Value

This silicon bronze hex nut delivers exceptional performance in corrosive environments where standard steel fasteners fail. The UNC coarse thread design prevents cross-threading and enables rapid installation in high-vibration applications like marine equipment, chemical processing, and coastal infrastructure. The Class 2B thread fit maintains consistent torque values while the external hex drive accommodates standard industrial tools. Silicon bronze's natural resistance to saltwater corrosion and atmospheric degradation makes these industrial hex nuts ideal for permanent installations requiring long-term reliability without maintenance.

Specification Summary & Compliance

Manufactured to precise inch system standards with 1 1/4"-7 UNC coarse threading and Class 2B thread fit tolerance. The standard hex nut profile measures 1 7/8" across flats with 1 1/16" height. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for hazardous substance restrictions, ensuring environmental safety in industrial applications.