Fusilier
I have actually used them and have gone through two and a half packets of them. They have an assortment as I said of 32 pegboard clips.
As you can see by the pictures my whole shed except for where the roller doors are, is lined with pegboard. I got all of this for nothing from a shed that belonged to Lysaght that was pulled down at the Agquip Field Days. The pegboard had been used as a display.
As you can see part of the assortment of clips and the single type ones have a pin on the back that locks them into the pegboard. The double pin ones lock themselves.
I have made some custom ones out of 10 gauge fencing wire which is a reasonably tight fit in the peg hole.