Value Collection R83920681 Hex Nut 7/8-9 18-8 Stainless

Product Description

The VALUE COLLECTION R83920681 is a standard hex nut threaded to a 7/8-9 UNC specification and manufactured from 18-8 stainless steel with a bright, uncoated finish. It measures 1-5/16 inches across the flats and 3/4 inch in height, with a right-hand thread direction. The 18-8 stainless steel alloy provides solid corrosion resistance in wet, chemical, or outdoor environments where carbon steel fasteners would corrode prematurely. This nut is used by plumbers, pipefitters, HVAC technicians, electricians, and general mechanical contractors wherever a reliable, corrosion-resistant threaded fastener is required.

This hex nut is suited for residential and commercial applications including pipe flange assemblies, equipment mounting, structural connections, and mechanical systems exposed to moisture or mild chemicals. The 7/8-9 UNC thread form is a common coarse-thread standard found across a wide range of bolts, studs, and threaded rod used in trade work. It is sold individually and is appropriate for maintenance, repair, and new installation work.

Key Features

• 18-8 stainless steel construction provides corrosion resistance in wet and outdoor service conditions
• 7/8-9 UNC coarse thread form for broad compatibility with standard threaded fasteners
• Right-hand thread direction per standard UNC and UNF thread conventions
• 1-5/16 inches across flats for use with standard 1-5/16 inch open-end or box wrenches and sockets
• Bright, uncoated finish with no additional plating or coating that could interfere with dimensional tolerances
• Does not meet military specifications — suitable for commercial and trade applications

Compatibility

Designed for use with 7/8-9 UNC threaded bolts, studs, and threaded rod in commercial and residential mechanical, plumbing, HVAC, and electrical installations requiring stainless steel fasteners.

Installation Notes

This hex nut is installed by hand-threading onto a matching 7/8-9 UNC fastener, then tightened with a 1-5/16 inch open-end wrench, box wrench, or socket. Always ensure the mating fastener material is compatible with 18-8 stainless steel to avoid galvanic corrosion in mixed-metal assemblies. De-energize or shut off any system before fastening components in live mechanical or electrical enclosures. Follow applicable code requirements including ASME, NEC, or IPC as relevant to the installation type.