🔧 Hook it, secure it, own it! Includes 2 hex nuts for added security. Designed for durability in interior and exterior settings. Standard machine screw threads for reliable performance. Perfect for both home and industrial use. Quality craftsmanship you can trust. 5/16" x 5" size Hexagon bolt type Zinc plated finish The National Hardware N221-689 2162 Hook Bolts are robust, zinc-plated fasteners designed for versatile applications in both home and industrial settings. Each bolt measures 5/16" x 5" and comes with two hex nuts, ensuring a secure and reliable fastening solution. Crafted from durable steel wire, these bolts are built to withstand the elements, making them ideal for both interior and exterior use. Proudly made in the USA, they combine quality and functionality for all your fastening needs.