Bob Brines Messages: 186 Registered: May 2009 Location: Hot Springs Village, AR
Master
Threaded inserts are the only way to go. T-nuts are bound to fail in MDF and you have to be very careful about bending the tangs in plywood. Inserts will hold in MDF with moderate care and are firm in plywood. Those toothed inserts will be difficult to seat in plywood without damaging the area around the hole unless the hole made overly large.