US Hex Bolt Sizes and Thread Pitches
#4 - 40
3/8” - 24
1
Coarse thread
#6 - 32
7/16”
2
Coarse thread
#8
#8 - 32
190
Fine thread
#6
220
Coarse thread
7/16” - 14
Coarse thread
7/16” - 20
180
#4
210
Length
200
3/8” - 16
170
Length is measured from under the head
to the end of the bolt
150
#10
Fine thread
#10 - 24
Coarse thread
140
3
Coarse thread
1/2”
4
1/2” - 13
120
#10 - 32
130
in
160
3/8”
230
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1/2” - 20
90
1/4” - 20
Coarse thread
Fine thread
7
5/16”
80
9/16” - 12
60
Fine thread
70
9/16”
5/16” - 18
Coarse thread
Coarse thread
9/16” - 18
30
5/16” - 24
50
6
1/4” - 28
40
5
1/4”
100
Coarse thread
110
Fine thread
Fine thread
20
8
Fine thread
IMPORTANT:
Make sure to print this chart to Actual Size (no scaling).
9
boltdepot.com/tools for more details.
www.boltdepot.com/tools
After printing, measure the ruler in the margin to ensure correct scale. See
10
Copyright © 2000-2017 Bolt Depot Inc.
mm
US Hex Bolt Sizes and Thread Pitches (continued)
7/8”
7/8” - 9
5/8”
210
5/8” - 11
220
in
230
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5/8” - 18
160
7/8” - 14
170
2
180
190
200
1
Coarse thread
Coarse thread
150
3
Fine thread
4
130
140
Fine thread
120
1”
3/4”
110
1” - 8
3/4” - 10
1” - 14
60
70
3/4” - 16
6
Coarse thread
80
90
100
5
Coarse thread
50
7
40
Fine thread
30
Fine thread
20
8
IMPORTANT:
Make sure to print this chart to Actual Size (no scaling).
9
boltdepot.com/tools for more details.
After printing, measure the ruler in the margin to ensure correct scale. See
www.boltdepot.com/tools
10
Copyright © 2000-2017 Bolt Depot Inc.
mm