National Mfg N100-393 Hook J Bolt 5/16x5 in Steel 10-pack

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N100-393 is a 5/16-inch by 5-inch hook and J bolt designed for hanging and fastening applications in both interior and exterior environments. Manufactured from steel wire, the bolt features standard machine screw threads for straightforward installation across a wide variety of mounting situations. Each bolt includes two hex nuts that affix to either side of the post, allowing for position adjustment after installation. The WeatherGuard Protection coating resists corrosion and withstands harsh weather conditions, making this fastener suitable for exposed outdoor use. This listing covers a package of 10 bolts.

The N100-393 hook and J bolt is suited for general hanging tasks in residential and light commercial settings. Common applications include suspending pipes, conduit, straps, signs, and similar items from framing, joists, or masonry anchors. The exterior-rated coating makes it appropriate for covered outdoor structures such as pergolas, sheds, and utility buildings, as well as standard interior framing applications. Licensed tradespeople and knowledgeable installers working in plumbing, HVAC, or general construction will find this a practical stock fastener for hanger and support work.

Key Features

• Steel wire construction for strength and durability in fastening applications
• WeatherGuard Protection coating resists corrosion for interior and exterior use
• Standard machine screw threads for compatibility with common installation methods
• Includes two hex nuts per bolt for dual-side adjustment and secure positioning
• Package of 10 bolts for stocking or multi-point installations
• Backed by a Limited Lifetime Warranty from National Hardware

Compatibility

Designed as a general-purpose hook and J bolt for interior and exterior hanging applications where a 5/16-inch by 5-inch fastener with standard machine screw threads is required.

Installation Notes

Installation is appropriate for general contractors, plumbers, HVAC technicians, and electricians using hook bolts for hanger and support work. Ensure the mounting substrate is capable of supporting the intended load before installing. Thread one hex nut onto the bolt before passing it through the mounting point, then thread the second nut on the opposite side and tighten both to secure the bolt in position. Follow applicable local building codes and manufacturer load guidelines for the specific application.