This clip is fully customizable for regular and metal pegboard, for hooks with round stems. By default it is dialed in for the Wall Control's metal pegboard, and for 1/4" plastic hooks that fit it loose without clips. Use one clip to secure a hook, two to hold it solid.

The locking mechanism is rounded to better slide into pegboard holes, and to provide better hold than common flat clips. Two clips will fit into one hole as long as [hook thickness] x 2 + [clip hook notch] <= [hole diameter].