This mounting plate and post let you quickly position a Kreg hold-down clamp in the perforated table top of a Festool MFT/3 multifunction table. The bolt supplied with the clamp is used to attach it to the mounting plate. The steel post is 20mm in diameter and 11/16" long – just less than the table top’s 3/4” thickness – threaded internally for use with the supplied clamping knob (or an MFT accessory clamping knob).