| 11. | To fasten boards with nails, first drill pilot holes to avoid splitting the wood.
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| 12. | If you use a finish nail, drill a pilot hole through the hardwood first.
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| 13. | The pilot hole should be slightly smaller than the thread diameter of the screw.
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| 14. | Drill pilot holes first and countersink each screw head into the tr % ad
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| 15. | In addition to the pilot hole, drill a clearance hole for the screw shank.
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| 16. | Drill pilot holes along the inside edge of the casing.
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| 17. | You can nail into studs, but you must screw into lath, predrilling pilot holes.
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| 18. | Or, let the epoxy set, drill a small pilot hole, and drive in the screw.
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| 19. | For metalwork, this is countered by drilling a pilot hole with a spotting drill bit.
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| 20. | If you have to install sheet metal screws, you need to drill pilot holes first.
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