Abstract: A machine 10 to insert "T Nuts" 77 into a piece of timber, the machine 10 including a pneumatically operated insertion assembly 12 having an air nozzle 46 which moves the "T-Nut" 77 to an insertion location and a pneumatically operated ram 20 which has a piston 26 movable from a retracted position to an extended position inserting the "T-Nut" 77.