Value Collection 31219 Hex Nut 7/8-14 Grade 5 Zinc-plated

Product Description

The VALUE COLLECTION 31219 is a 7/8-14 UNF hex nut manufactured from SAE J995 Grade 5 steel with a zinc-plated finish. It features right-hand threading and meets ANSI ASME B18.2.2 dimensional standards. With a width across flats of 1.3125 inches and a height of 0.75 inches, this nut is suited for high-load fastening applications in mechanical, HVAC, plumbing, and general trade work. The zinc plating provides basic corrosion resistance for both indoor and sheltered outdoor environments. Hardness is rated at 32 HRC, indicating the structural integrity expected from a Grade 5 fastener. Licensed tradespeople and maintenance professionals rely on this standard hex nut for reliable, repeatable assembly.

This hex nut is appropriate for use in residential and light commercial mechanical assemblies where a 7/8-14 fine-thread fastener is specified. Common applications include equipment mounting, structural bracketing, and component assembly on HVAC units, pump systems, and general mechanical equipment. The fine thread pitch of the 7/8-14 designation provides tighter thread engagement and is commonly preferred where vibration resistance or precise torque control is required. It is sold individually but must be ordered in multiples of 25.

Key Features

• 7/8-14 UNF right-hand thread for fine-pitch fastening applications
• SAE J995 Grade 5 steel construction rated at 32 HRC hardness
• Zinc-plated finish for basic corrosion protection
• 1.3125 inches across flats, compatible with standard 1-5/16 inch wrenches
• Meets ANSI ASME B18.2.2 dimensional standards
• Height of 0.75 inches providing full thread engagement depth

Compatibility

Designed as an OEM-style replacement or standard service hex nut for any mechanical assembly requiring a 7/8-14 UNF Grade 5 steel fastener conforming to ANSI ASME B18.2.2.

Installation Notes

Installation is performed with a 1-5/16 inch open-end, box-end, or socket wrench. De-energize and lock out all equipment before servicing any fastened assembly. Apply thread-locking compound or flat washer as required by the application or equipment manufacturer. Torque to the value specified by the equipment manufacturer or applicable service manual for Grade 5 fasteners of this thread size.