S-91875A190 3/4"-10 Cap Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
• Optimal thread engagement with 3/4" thread depth for secure, vibration-resistant fastening in heavy-duty applications
• Reliable coarse threading (3/4"-10 UNC) provides faster assembly and reduced cross-threading risk compared to fine threads
• Precise Class 2B thread fit ensures consistent performance and compatibility with standard Class 2A mating components
• Full external hex drive design enables high-torque installation using common wrench tools for efficient maintenance
• Standard cap nut profile offers both finished appearance and protection against thread damage in exposed applications
• Environmental compliance with RoHS 3 standards meets regulatory requirements for industrial procurement

Professional Applications & Engineering Value

This zinc-plated steel cap nut delivers critical performance advantages in demanding industrial settings where corrosion resistance and structural integrity are paramount. The 3/4"-10 UNC coarse thread configuration excels in applications involving vibration or dynamic loading, maintaining secure fastening while allowing rapid assembly/disassembly. The Class 2B thread fit provides consistent engagement with mating components, reducing installation torque variations and preventing galling in high-cycle operations. With its external hex drive and substantial 1-1/16" width, this nut accommodates standard tooling while providing sufficient bearing surface for load distribution. The zinc plating creates a sacrificial barrier that significantly extends service life in moderate corrosive environments, making it ideal for machinery, structural frameworks, and equipment manufacturing where reliability cannot be compromised.

Specification Summary & Compliance

Manufactured to UNC coarse thread standards with precise Class 2B thread fit tolerances ensuring compatibility with industry-standard components. Dimensions include 1-1/16" width across flats and 1-5/32" height with full 3/4" thread depth. Compliant with RoHS 3 (2015/863/EU) regulations under exemption 6(a)-I for lead as steel alloying element. The right-hand thread direction and external hex drive conform to North American inch measurement system specifications for industrial fasteners.