Dimensions Stud Bolts for RF-RTJ flanges ASME B16.5 – Class 900

Class  150 | 300 | 400 | 600 | 900 | 1500 | 2500

NPS Diameter
bolts (in)
Length
RF
Length
RTJ
N°
of bolts
NPS Diameter
bolts (in)
Length
RF
Length
RTJ
N°
of bolts
1/2 3/4 110 110 4 6 1.1/8 190 195 12
3/4 3/4 115 115 4 8 1.3/8 220 220 12
1 7/8 125 125 4 10 1.3/8 235 235 16
1.1/4 7/8 125 125 4 12 1.3/8 255 255 20
1.1/2 1 140 140 4 14 1.1/2 275 280 20
2 7/8 145 145 8 16 1.5/8 285 290 20
2.1/2 1 160 160 8 18 1.7/8 325 335 20
3 7/8 145 145 8 20 2 350 360 20
4 1.1/8 170 170 8 24 2.1/2 440 455 20
5 1.1/4 190 190 8
NPS Diameter
bolts (in)
Length
RF
Length
RTJ
N°
of bolts
NPS Diameter
bolts (in)
Length
RF
Length
RTJ
N°
of bolts

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).
Measuring lengths of Stud Bolts and Hex bolts