Drive Sizes for Phillips Screws

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Phillips

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