21. A . You can cut that glaze, both around the plate and the screw heads , with a utility knife. 22. Drill pilot holes for the screws to avoid splitting the legs and sink the screw heads below the surface. 23. Common male bit drivers of this type include screw head types and a can be attached to a socket wrench. 24. Use, instead, joint compound, the same material used for covering nail or screw heads and taped seams in drywall construction. 25. Doing the same thing around the small screw heads is a little tricky, but with care you could do it. 26. CAPTION : Short piece of masking tape will hold screw head tight against end of screwdriver blade while getting it started. 27. This prevents stripping damage to the screw threads, at the expense of possible damage to the recess in the screw head . 28. Throughout the 19th century, the most commonly used forms of screw head ( that is, machine and served most applications adequately. 29. If your bits don't fit the screw heads , buy a bit that does fit, or use screws that fit the bit. 30. But-- unnoticed by me-- a tiny sliver of metal came off the screw head and landed on the computer's circuit board.