Value Collection R52001019 Hex Nut 1-1/4-7 Un Steel

Product Description

The VALUE COLLECTION R52001019 is a steel hex nut with a 1-1/4-7 UN thread specification and right-hand thread direction. It measures 1-7/8 inches across the flats and stands 1-1/16 inches high, with an uncoated finish. This standard hex nut is used to fasten threaded fastener assemblies across a wide range of industrial, mechanical, and structural applications. Installers in plumbing, HVAC, electrical, and general mechanical trades rely on hex nuts like this for securing bolted connections on equipment, piping supports, and structural components.

This hex nut suits applications requiring a 1-1/4-7 UN thread size with right-hand threading. It is appropriate for use in industrial assemblies, equipment mounting, and heavy mechanical fastening where a standard uncoated steel nut is called for. The UN thread standard makes it compatible with unified national thread fastener systems common in North American trade and manufacturing environments.

Key Features

• 1-1/4-7 UN thread specification for use with unified national thread fasteners
• Right-hand thread direction — standard for the vast majority of fastening applications
• 1-7/8 inches across flats for use with standard hex wrenches and sockets
• 1-1/16 inches high — full-height hex nut profile
• Uncoated steel construction suitable for dry or protected indoor mechanical assemblies
• Weighs 0.592 pounds per unit

Compatibility

Designed for use with 1-1/4-7 UN right-hand threaded bolts and studs conforming to the unified national thread standard.

Installation Notes

Hex nuts of this size are typically installed by mechanical or maintenance technicians using a standard hex socket or open-end wrench sized for 1-7/8 inches across the flats. Always ensure the mating bolt or stud shares the same thread standard and pitch before assembly. Inspect threads for damage or contamination before torquing. Do not use an uncoated steel nut in wet or corrosive environments without additional protective measures such as coatings or sealants.