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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/A5/16" #4

3/8" #4

Drive Sizes for Phillips Screws

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Page 1 of 2Bolt Depot - Drive sizes for phillips screws

2015-03-23https://www.boltdepot.com/fastener-information/Driver-Bits/Phillips-Driver-Sizes.aspx

Page 2 of 2Bolt Depot - Drive sizes for phillips screws

2015-03-23https://www.boltdepot.com/fastener-information/Driver-Bits/Phillips-Driver-Sizes.aspx