Triton Products 54105 LocHook 1-1/8-Inch Single Ring 1/2-Inch I.D. Zinc Plated Steel Tool Holder for LocBoard, 5-Pack Ideal for screwdrivers and small round tools with handles The 2 and 4-point contact locking mechanism offers industrial strength holding capability Hooks mount vertically and horizontally in 4 distinct positions allowing the use of multiple hooks for large, heavy and odd-shaped items Fixtures install from the front, so no need to remove the board for installation or repositioning of LocHooks causing no damage to the LocBoard Compatible with all locboard sizes and other brands of steel tool boards with square holes spaced 1-1/2-inch o.c.