Stewart Fastener J37NHZ Finished Hex Nuts 3/8-16 Zinc 100-pack

Product Description

The STEWART FASTENER J37NHZ is a jar of 100 finished hex nuts in a 3/8-16 thread size, constructed from steel with a zinc plating finish. These nuts are a standard fastener used to secure threaded rod, bolts, and machine screws in structural and mechanical assemblies. The finished hex profile provides flat, parallel bearing surfaces for consistent wrench engagement and reliable clamping force. Zinc plating adds a layer of corrosion resistance suitable for general indoor and light-duty applications. Each jar contains 100 nuts, making it practical for jobs requiring bulk quantities on the bench or in the field.

These 3/8-16 finished hex nuts are used across HVAC, plumbing, electrical, and general construction trades wherever a 3/8-inch coarse-thread fastener is required. Common applications include equipment mounting, strut channel assembly, unistrut hardware connections, pipe hanger installations, and panel or bracket fabrication. The coarse 16-thread-per-inch pitch is the standard for 3/8-inch fasteners in most North American mechanical and structural applications, ensuring broad hardware compatibility.

Key Features

• 3/8-16 coarse thread pitch — the North American standard for 3/8-inch fastener assemblies
• Steel construction with zinc plating for corrosion resistance in general-duty use
• Finished hex profile for consistent wrench flats and reliable torque application
• Sold in a jar of 100 units per each, suited for bench stock or bulk field use

Compatibility

Designed for use with any standard 3/8-16 threaded bolt, rod, or stud conforming to ASME B18.2.2 finished hex nut dimensions.

Installation Notes

Standard hex nuts in this thread size are installed by hand-threading first to avoid cross-threading, then tightened with an appropriate wrench or socket. Always verify that the mating bolt or rod shares the same thread specification before assembly. Follow applicable mechanical or structural codes for torque and fastener requirements specific to the installation type.

Technical Specifications

• Thread Size: 3/8-16
• Material: Steel
• Finish: Zinc Plated
• Quantity per Jar: 100
• UPC: 662352112062

Standard Information

• Brand: STEWART FASTENER
• Manufacturer Part Number: J37NHZ