National Mfg N232-918 Zinc J-bolt 5/16x3 in 10-pack

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N232-918 is a zinc-plated J-bolt measuring 5/16 inches in diameter and 3 inches in length. J-bolts are threaded fasteners with a curved hook end used to anchor, hang, or secure structural and mechanical components. This bolt ships in bulk packaging as a unit of 10 pieces, making it practical for job-site stock or multi-point installations. The zinc plating provides basic corrosion resistance suited to dry or mildly exposed indoor applications. Plumbers, electricians, HVAC technicians, and general contractors commonly keep J-bolts on hand for pipe hangers, equipment mounting, and similar fastening tasks.

This J-bolt is used across residential and light commercial installations wherever a hook-end threaded fastener is required. Typical applications include suspending pipe or conduit from framing members, securing equipment to concrete or structural steel, and anchoring strap-type supports. The 5/16-inch thread diameter is a widely used size in mechanical trades. The 10-piece bulk pack suits service vans, supply rooms, or contractors completing multiple connection points in a single job.

Key Features

• Zinc plating for corrosion resistance in standard indoor environments
• 5/16-inch diameter thread fits common nuts and washers stocked in mechanical trades
• 3-inch length provides adequate hook depth and thread engagement for typical hanger applications
• Bulk pack of 10 pieces per unit reduces per-piece cost on multi-point installations
• J-hook profile allows drop-in installation through pre-drilled holes before threading

Compatibility

Designed as a general-purpose J-bolt suitable for pipe hanger, conduit support, and equipment anchoring applications where a 5/16-inch x 3-inch zinc-plated hook bolt is specified.

Installation Notes

J-bolts are installed by licensed plumbers, electricians, and HVAC technicians as well as general construction trades. Always ensure the substrate material and load rating are appropriate for the intended application before installation. Use a properly sized nut and washer for the 5/16-inch thread to achieve adequate clamping. Follow applicable local building codes and mechanical codes when supporting pipe, conduit, or equipment loads.