Value Collection -36674-2 Coupling Nut 3/4-10 Unc Steel

Product Description

The VALUE COLLECTION -36674-2 is a standard coupling nut machined from steel with a zinc-plated finish for basic corrosion resistance. Coupling nuts are internally threaded fasteners used to join two externally threaded rods or bolts end-to-end, extending reach or connecting threaded rod stock. This nut features a 3/4-10 UNC thread profile with right-hand thread direction and a Material Grade 2 designation. The overall assembly length (OAL) is 2.25 inches, and the width across flats measures 1 inch, making it compatible with standard hex wrenches. Installers across mechanical, structural, and trade service applications reach for coupling nuts when splicing all-thread rod or anchoring threaded hardware.

This coupling nut is suited for light-to-medium duty mechanical and structural fastening tasks in residential and commercial construction, HVAC equipment mounting, plumbing support systems, and general trade work. The 3/4-10 UNC thread is one of the most common coarse-thread sizes in North American trade applications, found on support rod, hanger rod, and equipment-mounting hardware. The zinc-plated finish provides a serviceable layer of protection in dry and mildly humid indoor environments.

Key Features

• 3/4-10 UNC coarse thread for broad compatibility with standard threaded rod and fastener stock
• Right-hand thread direction — standard for the vast majority of mechanical fastening applications
• 2.25-inch OAL provides extended thread engagement for secure rod-to-rod connections
• 1-inch width across flats accepts standard hex wrenches and open-end wrenches
• Steel construction with zinc-plated finish for basic corrosion protection in indoor environments
• Material Grade 2 designation for general-purpose fastening loads

Compatibility

Designed as a standard replacement or stock coupling nut for 3/4-10 UNC threaded rod and fastener applications in mechanical, plumbing, HVAC, and structural support installations.

Installation Notes

Coupling nuts should be installed by a qualified tradesperson following applicable mechanical and structural codes. Power down or de-energize any adjacent equipment before working in confined spaces near electrical components. Use appropriately rated wrenches sized to the 1-inch width across flats and torque to the structural requirement of the application — do not overtighten beyond the grade rating of the assembly. Inspect thread engagement on both mating rods before applying load to ensure full thread contact throughout the nut length.