asme-b-16-5-class-150

Studs and Hex Bolt Dimensions for ASME B16.47 Series B Flanges.

Nominal Pipe Size, NPSClass 150Class 300Class 400Class 600Class 900
dLdLdLdLdL
26″3/4″5-1/2″1-1/4″10-1/2″1-3/8″11-1/4″1-5/8″13-3/4″2-1/2″17-1/4″
28″3/4″5-3/4″1-1/4″10-1/2″1-1/2″12″1-3/4″14-1/4″2-3/4″19″
30″3/4″5-3/4″1-3/8″11-1/4″1-1/2″12-1/2″1-7/8″15-1/4″3″20″
32″3/4″5-3/4″1-1/2″12-1/4″1-5/8″13-1/2″2″15-3/4″3″20-1/4″
34″7/8″6-1/4″1-1/2″12-1/4″1-5/8″13-3/4″2-1/4″17-1/4″3-1/4″21-3/4″
36″7/8″6-3/4″1-5/8″12-1/2″1-3/4″15-1/2″2-1/4″17-3/4″3″21-1/4″s
38″1″7-1/4″1-5/8″13-1/4″
40″1″7-1/4″1-5/8″13-1/2″
42″1″7-1/2″1-3/4″14″
44″1″7-3/4″1-3/4″14-3/4″
46″1-1/8″8″1-7/8″15″
48″1-1/8″8-1/4″1-7/8″15″
50″1-1/8″8-1/2″1-7/8″15-3/4″
52″1-1/8″8-3/4″1-7/8″16″
54″1-1/8″8-3/4″1-7/8″15-3/4″
56″1-1/8″9″2-1/4″17-3/4″
58″1-1/4″9-1/4″2-1/4″17-3/4″
60″1-1/4″9-1/2″2-1/4″17-1/2″

Notes:

  • d stands for “Diameter of Bolts”. L stands for “Length of Stud Bolts”.
  • L is measured from the stud bolt’s first thread to its first thread on the other end.
  • All dimensions are in inch unit.

The Information contained in this data sheet is for reference purpose only and actual data may vary from product to product. Complete rely on these values for product design is not recommended. User will be solely responsible for any failure in intended construction.