| NPS | N | D |
| 26 | 28 | 1-7/8 |
| 28 | 28 | 2 |
| 30 | 28 | 2 |
| 32 | 28 | 2-1/4 |
| 34 | 28 | 2-1/4 |
| 36 | 28 | 2-1/2 |
| 38 | 28 | 2-1/4 |
| 40 | 32 | 2-1/4 |
| 42 | 28 | 2-1/2 |
| 44 | 32 | 2-1/2 |
| 46 | 32 | 2-1/2 |
| 48 | 32 | 2-3/4 |
| 50 | 28 | 3 |
| 52 | 32 | 3 |
| 54 | 32 | 3 |
| 56 | 32 | 3-1/4 |
| 58 | 32 | 3-1/4 |
| 60 | 28 | 3-1/2 |
*n: number of bolts; D: diameter of the stub bolts, unit is inch.
| NPS | L | Mass |
| 26 | 368 | 6.902 |
| 28 | 381 | 8.222 |
| 30 | 393 | 8.407 |
| 32 | 419 | 11.573 |
| 34 | 425 | 11.680 |
| 36 | 450 | 15.602 |
| 38 | 463 | 12.403 |
| 40 | 476 | 12.629 |
| 42 | 501 | 16.777 |
| 44 | 514 | 17.093 |
| 46 | 527 | 17.396 |
| 48 | 565 | 22.528 |
| 50 | 590 | 28.075 |
| 52 | 603 | 28.516 |
| 54 | 615 | 28.923 |
| 56 | 647 | 36.149 |
| 58 | 660 | 36.675 |
| 60 | 692 | 37.971 |
*L: length of stub bolts, unit is mm; Mass: mass of boltings for ASME B16.47 Series A Class 600 flanges, unit is kg.
Dimensions & Masses of the Boltings
*Click to view the dimensions & masses of the stud bolt with two heavy hex nuts for series A flange.
*Click to view the dimensions & masses of the stud bolt with two heavy hex nuts for series B flange.