Stud Bolts Dimensions for RF-RTJ flanges ASME B16.5 Class 150

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Here\’s the table below for ASME B16.5 Class 150 Flanges

NPS DIA
bolts (in)
Length
RF
Length
RTJ
Number
of bolts
1/2 1/2 55 4
3/4 1/2 65 4
1 1/2 65 75 4
1/2 70 85 4
1/2 70 85 4
2 5/8 85 95 4
5/8 90 100 4
3 5/8 90 100 4
5/8 90 100 8
4 5/8 90 100 8
5 3/4 95 110 8
6 3/4 100 115 8
8 3/4 110 120 8
10 7/8 115 125 12
12 7/8 120 135 12
14 1 135 145 12
16 1 135 145 16
18 1.1/8 145 160 16
20 1.1/8 160 170 20
24 170 185 20

General notes:

  • Dimensions are in millimeters unless otherwise indicated.
  • Length dimensional tolerances for all Stud Bolts:
    length to 12 inch tolerance = ± 1.6 mm
    length over 12 inch to 18 inch tolerance = ± 3.2 mm
    length over 18 inch tolerance = ± 6.4 mm
  • The length of the Stud Bolt does not include the height of the chamfers (points).

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