Drive Sizes for Phillips Screws

Phillips
Screw Diameter
|
Drive size |
Machine Screws |
Sheet Metal Screws |
Wood screws |
Flat |
Round |
#2 |
#1 |
#1 |
#1 |
#1 |
#3 |
N/A |
#1 |
#1 |
#1 |
#4 |
#1 |
#1 |
#1 |
#1 |
#5 |
N/A |
#2 |
#2 |
#2 |
#6 |
#2 |
#2 |
#2 |
#2 |
#7 |
N/A |
#2 |
#2 |
#2 |
#8 |
#2 |
#2 |
#2 |
#2 |
#9 |
N/A |
#2 |
#2 |
#2 |
#10 |
#2 |
#2 |
#3 |
#2 |
#12 |
#3 |
#3 |
#3 |
#3 |
#14 |
N/A |
#3 |
#3 |
#3 |
1/4" |
#3 |
N/A |
5/16" |
#4 |
3/8" |
#4 |