US Socket Cap Sizes

mm

1020

3040

5060

7080

9010

011

012

013

014

015

016

017

018

019

020

021

022

023

0in

12

34

56

78

9

Copyright © 2000-2017 Bolt Depot Inc.

IMPORTANT: Make sure to print this chart to Actual Size (no scaling).After printing, measure the ruler in the margin to ensure correct scale.

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Length

Fastener length is measured from where the material surface is assumed to be, to the end of the fastener.

#2-56

#2-64

#4-40

#4-48

#6-32

#6-40

#8-32

#8-36

#10-24

#10-32

#12-24

#12-28

1/4"-20

1/4"-28

5/16"-185/8"-11

5/8"-18

3/4"-10

3/4"-16

5/16"-24

3/8"-24

3/8"-16

7/16"-14

7/16"-20

1/2"-13

1/2"-20

9/16"-12

9/16"-18

7/8"-9

7/8"-14

7/8”

1/4”

#12

#10

#8

#6

#4

#2

9/16”

1/2”

3/4”

5/8”

7/16”

3/8”

5/16”

Coarse thread

Fine thread

Coarse thread

Fine thread

Coarse thread

Fine thread

Coarse thread

Fine thread

Coarse thread

Fine thread

Coarse thread

Fine thread

Coarse thread

Fine thread

Coarse thread

Fine thread

Coarse thread

Fine thread

Coarse thread

Fine thread

Coarse thread

Fine thread

Coarse thread

Fine thread

Coarse thread

Fine thread

mm

1020

3040

5060

7080

9010

011

012

013

014

015

016

017

018

019

020

021

022

023

0in

12

34

56

78

9

US Socket Cap Sizes (continued)

Copyright © 2000-2017 Bolt Depot Inc.

IMPORTANT: Make sure to print this chart to Actual Size (no scaling).After printing, measure the ruler in the margin to ensure correct scale.

www.boltdepot.com/tools

See boltdepot.com/tools for more details.www.boltdepot.com/tools

1"-8

1"-14

1-1/8"-7

1-1/4"-7

1-3/8"-6

1-1/2"-6

1”

1-1/8”

1-1/4”

1-3/8”

1-1/2”

Coarse thread

Coarse thread

Coarse thread

Coarse thread

Coarse thread

Fine thread