1. Standard Metal Pegboard Hooks: These hooks are the foundational type for pegboard applications. Universally applicable, they support a broad range of items and tools, rendering them suitable for both residential and commercial use.

2. Double Rod Pegboard Hooks: Constructed with dual rods, these hooks offer enhanced strength and stability, making them apt for suspending heavier objects. They ensure a firm grip, ideal for arranging heavier hand tools or gardening equipment.

3. Pegboard Hook Assortments: This variety includes multiple hook designs and sizes, providing an all-encompassing solution for organizing diverse items on a pegboard. Typically, these assortments come equipped with peg locks to ensure the hooks remain securely attached.

4. Specialty Pegboard Hooks: Tailored for particular items or tools like screwdrivers, hammers, or storage bins, these hooks often feature unique designs or modifications to hold specific items effectively.

5. Pegboard Hook Accessories: Comprising supplementary elements such as peg locks, U-shaped hooks, and shelving brackets, these accessories enhance pegboard functionality. They are instrumental in customizing and stabilizing the pegboard setup to maximize organizational efficiency.

These categories illustrate the extensive range of metal pegboard hooks available, meeting diverse storage and organizational requirements across various settings.