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Anonymous Poster

thread vs wrench

03/31/2010 3:36 PM

If I have a 3/8" - 16 UNC thread on a nut what size heax head is the nut?
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lyn
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#1

Re: thread vs wrench

03/31/2010 3:42 PM

From KT Bolt Mfg

US Bolt Head/Wrench Size Table

Bolt
Diameter

Head/Wrench Size

Hex Bolt
-
Lag Bolt
-
Square Bolt

Heavy Hex Bolt

#6

 1/4 -

#8

 1/4 -

#10

 5/16 -

#12

 5/16 -

1/4

 7/16 or 3/8 -

5/16

 1/2 -

3/8

 9/16 -

7/16

 5/8 -

1/2

 3/4 7/8

9/16

 13/16 -

5/8

 15/16 1-1/16

3/4

 1-1/8 1-1/4

7/8

 1-5/16 1-7/16

1

 1-1/2 1-5/8

1-1/8

 1-11/16 1-3/4

1-1/4

 1-7/8 2
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