Shop reference tools
Screw Size Chart
Find screw size references, pilot holes, and clearance hole starting points.
Screw Size Chart lookup
Start with the table, then use the related pages for tapping, clearance holes, pilot holes, and printable shop sheets.
| Screw | Softwood pilot | Hardwood pilot | Clearance hole | Note |
|---|---|---|---|---|
| #6 screw | 1/16 in | 5/64 in | 9/64 in | Small trim and cabinet hardware. |
| #8 screw | 5/64 in | 3/32 in | 11/64 in | Common wood screw size for general shop work. |
| #10 screw | 3/32 in | 7/64 in | 13/64 in | Use larger pilot holes in dense hardwoods. |
| #12 screw | 7/64 in | 1/8 in | 15/64 in | Useful for heavier fixtures and outdoor work. |
Related references
Pilot Hole vs Clearance HoleThe difference between pilot holes, tap drill holes, and clearance holes with practical examples.Clearance Hole ChartCompare close-fit and free-fit clearance holes for common screws and bolts.Drill Size ChartFind fractional, number, letter, and metric drill sizes with decimal inch and millimeter equivalents.