Bed Claw Retro-Hook Plates For Wooden Bed Rail Restoration, Set of 4 with Screws The Bed Claw&reg; Retro-Hook Plate helps you repair or rebuild damaged wooden bed side rails. It can also be used for constructing new side rails. The Retro-Hook Plate facilitates the installation of a hook plate to the bed rail by means of 8 included screws Bed Claw&reg; Retro-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. If the existing hooks in your wood bed rails do not reach deep enough into your bed to connect, you can replace them with Retro-Hook Plates, which can be installed to protrude deeper. This is a set of 4 hook plates along with screws needed for installation.