Value Collection R52001595 Hex Lock Nut 7/8-9 Grade 8

Product Description

The VALUE COLLECTION R52001595 is a 7/8-9 UNC hex lock nut with a nylon insert locking mechanism, manufactured from Grade 8 steel with a yellow zinc dichromate finish. The nylon insert creates prevailing torque that resists loosening caused by vibration and dynamic loading, making this nut a reliable choice for structural and mechanical fastening applications. At 63/64 inches in height and 1-1/4 inches across the flats, this nut meets standard dimensional requirements for 7/8-9 threaded assemblies. Installation and removal require a right-hand thread direction. Licensed tradespeople and industrial maintenance technicians are the typical installers.

This hex lock nut is suited for heavy-duty mechanical assemblies where vibration resistance is critical. Typical applications include structural steel connections, heavy equipment frames, agricultural machinery, and industrial fabrication. The Grade 8 steel construction is appropriate for high-strength fastening requirements. The yellow zinc dichromate finish provides a degree of corrosion resistance for indoor and moderately exposed environments. This nut is sold individually with a minimum order quantity of 5 units.

Key Features

• Nylon insert locking style prevents loosening under vibration and dynamic loads
• Grade 8 steel construction for high-strength fastening applications
• Yellow zinc dichromate finish offers corrosion resistance
• 7/8-9 UNC thread size with right-hand thread direction
• Standard hex profile accepts common 1-1/4 inch across-flats wrenching tools

Compatibility

Designed as a standard replacement or assembly nut for 7/8-9 UNC right-hand threaded bolts and studs used in high-strength fastening applications.

Installation Notes

Installation should be performed by a qualified mechanic or maintenance technician familiar with fastener torque requirements for Grade 8 hardware. Always ensure the mating bolt or stud is free of debris and properly lubricated per the assembly specification before threading the nut. Do not exceed the rated clamp load for the fastener grade. Replace any nut that shows signs of damaged threads or a deformed nylon insert, as locking effectiveness will be compromised.