What Size Drill Bit

Wood screws

hardwood 1/16"#2 screwhardwood 5/64"#3 screwhardwood 5/64"#4 screwhardwood 3/32"#5 screwhardwood 7/64"#6 screwhardwood 7/64"#7 screwhardwood 1/8"#8 screwhardwood 9/64"#9 screwhardwood 9/64"#10 screwhardwood 5/32"#12 screwhardwood 11/64"#14 screw

Lag screws

hardwood 3/16"1/4" laghardwood 13/64" to 1/4"5/16" laghardwood 1/4" to 5/16"3/8" laghardwood 11/32" to 7/16"1/2" laghardwood 29/64" to 9/16"5/8" laghardwood 9/16" to 11/16"3/4" lag

Printable pilot hole chart