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Pilot Hole Drill Sizes Wood Screws

ANSI Hardware Design and Guide

Pilot Hole Drill Sizes for Wood Screws per. ANSI B18.6.1 Size Table

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Pilot Hole Drill Sizes for Wood Screws per. ANSI B18.6.1 Size Table

Work Material
Wood Screw Size
2
4
6
8
10
12
14
Hardwood
3⁄64
1⁄16
5⁄64
3⁄32
7⁄64
1⁄8
9⁄64
Softwood
1⁄32
3⁄64
1⁄16
5⁄64
3⁄32
7⁄64
1⁄8