I got my figure 8 fasteners in the mail yesterday and attached them today. They're a little smaller than I thought they would be, but I'm sure they'll hold the top to the apron just fine. They came in a package of 20, so I used all 20 of them. 4 on each end and 6 on each side.

Step 1: Evenly space out the fasteners and mark their location. Then I traced along the outside and inside of the fasteners.



Step 2: Drill a pilot hole for the screws.



Step 3: I used a forstner bit to cut the recess. I originally bought a 5/8" bit, but turned out that my fasteners are more like 11/16". I should have measured better. Oh well, back to Home Depot to get a 3/4" bit (because they didn't have 11/16").



Step 4: Screw in the fasteners. Once the top is in place, you put another screw in through the other hole of the fastener into the bottom of the table.