Value Collection R50000348 Hex Nut 1-1/2-12 Unf Grade 5

Product Description

The VALUE COLLECTION R50000348 is a 1-1/2-12 UNF hex nut machined from Grade 5 steel with a zinc-plated finish. Designed for right-hand threaded fastener assemblies, this nut measures 2.25 inches across the flats and 1.317 inches in height, making it suitable for heavy-duty bolted connections. The zinc plating provides a baseline layer of corrosion resistance for general industrial and mechanical applications. At 0.543 pounds per unit, this nut is sized for high-load fastening tasks where a fine-thread UNF specification is required for tighter thread engagement and improved tensile performance.

This hex nut is used in mechanical, structural, and industrial assembly work where 1-1/2-12 fine-thread fasteners are specified. Typical applications include heavy equipment, agricultural machinery, industrial fabrication, and maintenance-repair-overhaul work. The UNF thread standard makes it a common choice when fine thread pitch is needed for vibration resistance or precise clamping force. It is installed by millwrights, mechanics, pipefitters, and general maintenance technicians working with large-diameter threaded rod or bolts in shop or field settings.

Key Features

• 1-1/2-12 UNF fine-thread specification for tighter thread engagement and higher tensile load capacity
• Grade 5 steel construction for improved strength over Grades 2 and 1
• Zinc-plated finish for basic corrosion protection in dry or mildly humid environments
• Right-hand thread direction, the standard for general fastening assemblies
• 2.25 inches across flats for use with standard heavy hex wrenches and sockets
• Single-unit packaging suitable for spot replacement or low-volume maintenance use

Compatibility

Designed for use with 1-1/2-12 UNF Grade 5 or compatible bolts and threaded rod in industrial, mechanical, and structural fastening assemblies.

Installation Notes

Install using a properly sized heavy hex wrench or socket matched to the 2.25-inch across-flats dimension. De-energize, depressurize, or otherwise isolate the assembly before performing fastener replacement or tightening operations. Do not mix thread standards — confirm the mating bolt or rod is UNF, not UNC or metric, before installation. Torque to the value specified in the equipment manufacturer's documentation for Grade 5 fasteners at this diameter.