Dayton Superior T1 Single Pickup Inserts are available with plastic or stainless steel tips and with or without T21 Insert Locator Plugs installed. T1 inserts are designed for use with T12 or -26 Swivel Lifting Plates. Do not use T1 inserts as an edge or end pick-up insert. Height of insert is 3/8" less than the panel's structural thickness. Standard panel thickness is shown in the chart and other panel thickness is available on special order. Minimum spacing between inserts is twice the minimum corner distance.