Our method for fastening table legs includes the use of stamped metal corner brackets. The reason we use a metal corner bracket, instead of the wooden brackets commonly used in the industry, is for the simple fact that the legs will stay firmly in place with a metal bracket. When wooden brackets are used, the washers will eventually seat into the wood, and the leg will come loose and wobbly. You will consistently be tightening up your table legs if they are built with wooden corner brackets.
The inside upper corner of the table leg is cut back and drilled to allow for the assembly of two hangar bolts, and to clear the corner bracket when assembled. A washer and lock nut are used to tightly and securely fasten the leg to the bracket. This keeps the legs tight, even with moving the table around periodically. Metal corner brackets also prevent weak points in the table aprons in the assembly part of it.
Using metal corner brackets allows us to fasten the leg nicely and tightly once and for all.