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Bolt - Flange, ANSI Class 900 (in)

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Bolt - Flange, ANSI Class 900 (in)

  • Stud bolts in accordance with ANSI/ASME B16.5.
  • A stud is threaded either on both ends or the full length of the stud.
  • Studs both have American National Course Threads.
  • Length of stud bolts do not include the height of the point.
  • Length of stud bolts when used with lap joint flanges will depend upon the thickness of the lap joint stub end.
Pipe Size

(NPS)

Number

of Bolts

Bolt

Diameter

Length of

Stud Bolt

Wrench Size

for Nut

1/2 4 3/4 4 1/4 1 1/4
3/4 4 3/4 4 1/2 1 1/4
1 4 7/8 5 1 7/16
1 1/4 4 7/8 5 1 7/16
1 1/2 4 1 5 1/2 1 5/8
2 8 7/8 5 3/4 1 7/16
2 1/2 8 1 6 1/4 1 5/8
3 8 7/8 5 3/4 1 7/16
3 1/2 - - - -
4 8 1 1/8 6 3/4 1 13/16
5 8 1 1/4 7 1/2 2
6 12 1 1/8 7 1/2 1 13/16
8 12 1 3/8 8 3/4 2 3/16
10 16 1 3/8 9 1/4 2 3/16
12 20 1 3/8 10 2 3/16
14 20 1 1/2 10 3/4 2 3/8
16 20 1 5/8 11 1/4 2 9/16
18 20 1 7/8 12 3/4 2 15/16
20 20 2 13 3/4 3 1/8
22 - - - -
24 20 2 1/2 17 1/4 3 7/8

 

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