Use a Phillips #2 screwdriver to remove one 1/4 in.-20 x 1-1/2 in. socket cap screw from the side of the glass.

Repeat the process for the other 1/4 in.-20 x 1-1/2 in. socket cap screw.

The appearance of this screw may differ from table to table, but the procedure remains the same. Use the appropriate screwdriver to open the screws.