Value Collection 163787 Hex Lock Nut 3/4-10 316 Ss

Product Description

The VALUE COLLECTION 163787 is a 3/4-10 UNC hex lock nut with a nylon insert locking style, manufactured from Grade 316 stainless steel with a bright, uncoated finish. The nylon insert compresses against the thread to resist loosening caused by vibration or dynamic loads. At 7/8 inches in height and 1-1/16 inches across flats, this nut meets standard UNC dimensional requirements and is suited for structural, mechanical, and fluid-system fastening applications where corrosion resistance is a priority. Grade 316 stainless steel provides superior resistance to chlorides and oxidizing environments compared to Grade 304.

This nut is used in industrial, marine, HVAC, plumbing, and pool equipment assemblies where stainless fasteners are specified to resist moisture, salt, and chemical exposure. The nylon insert design makes it appropriate for installations subject to vibration or thermal cycling, including pump mounts, pipe hangers, equipment frames, and enclosure hardware. It is installed by licensed trades and maintenance technicians working on commercial and residential mechanical systems.

Key Features

• Grade 316 stainless steel construction for high corrosion resistance in wet and chloride-rich environments
• Nylon insert locking mechanism resists loosening under vibration and dynamic loading
• 3/4-10 UNC thread size with right-hand thread direction
• Bright, uncoated finish with no added plating or treatment
• Height of 7/8 inches and 1-1/16 inches width across flats
• Width across points of approximately 1.191 inches for standard wrench clearance

Compatibility

Designed as a standard UNC 3/4-10 hex lock nut for use with 3/4-10 threaded fasteners and rods in mechanical, HVAC, plumbing, and pool equipment applications requiring Grade 316 stainless steel hardware.

Installation Notes

Install using a standard open-end or box wrench sized for 1-1/16 inches across flats. De-energize or shut off all connected systems before performing fastener work on live mechanical or electrical assemblies. The nylon insert is single-use by design — once the insert has been fully engaged and removed, replace the nut rather than reusing it. Follow applicable codes such as ASME B18.16.6 for prevailing-torque lock nut installation practices.