ASTM A453 Grade 660

ASME B16.5 Stud Bolts Class 2500

ASME B16.5 Stud Bolts Class 2500

ASME B16.5 Class 2500

Bolt and Stud Bolt Dimensions for ANSI / ASME B16.5 Class 2500 Flanges

Nominal Pipe Size, NPS Diameter of Bolts, in. Length of Bolts, L
Raised Face 0.25 in. Male and Female/ Tongue and Groove Ring Joint
1/2 3/4 4.75 4.50 4.75
3/4 3/4 5.00 4.75 5.00
1 7/8 5.50 5.25 5.50
1 1/4 1 6.00 5.75 6.00
1 1/2 1 1/8 6.75 6.50 6.75
2 1 7.00 6.75 7.00
2 1/2 1 1/8 7.75 7.50 8.00
3 1 1/4 8.75 8.50 9.00
4 1 1/2 10.00 9.75 10.25
5 1 3/4 11.75 11.50 12.25
6 2 13.50 13.25 14.00
8 2 15.00 14.75 15.50
10 2 1/2 19.25 19.00 20.00
12 2 3/4 21.25 21.00 22.00
NOTES :
  • Dimension are in inches.
  • Length of stud bolts does not include the height of the points.
  • Bolt lengths not shown in table may be determined in accordance with Annex D.