Application The Hook Plate is intended as a replacement for hook plates which have been damaged or for new bed construction. This bed rail hooks plate claws adapter kit for bed frame & Footboard Frame & Headboard. Materials Hook Plates are made with 13 gauge steel for durability, and are designed for use with beds which utilize 2" On Center pin spacing. This is the standard spacing for most American-made beds.Dimension 2" hook separation, thickness: 2.5 MM. Please refer to the second picture for the Bed Rail Brackets detailed size data. Warm prompt Please measure the distance from the two pins in your bed frame / headboard / footboard to confirm that they are 2" apart on center to determine. This way you know whether the hook plate can be used for your application.Complete Set Included Mounting Pins Package includes: 2 pack bed hook plates and 4 mounting pins.