| 150 | Nominal Pipe Size | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 3 1/2 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | |
| Number of Studs | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 8 | 8 | 8 | 8 | 8 | 12 | 12 | 12 | 16 | 16 | 20 | 20 | ||
| Diameter of Studs | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 | 5/8 | 5/8 | 5/8 | 5/8 | 5/8 | 3/4 | 3/4 | 3/4 | 7/8 | 7/8 | 1 | 1 | 1 1/8 | 1 1/8 | 1 1/4 | ||
| Length of Stud Bolts | 1/16 Ring Flange | 2 1/4 | 2 1/2 | 2 1/2 | 2 3/4 | 2 3/4 | 3 1/4 | 3 1/2 | 3 1/2 | 3 1/2 | 3 1/2 | 3 3/4 | 4 | 4 1/4 | 4 1/2 | 4 3/4 | 5 1/4 | 5 1/4 | 5 3/4 | 6 1/4 | 6 3/4 | |
| Ring Type Joint | 3 | 3 1/4 | 3 1/4 | 3 3/4 | 4 | 4 | 4 | 4 | 4 1/4 | 4 1/2 | 4 3/4 | 5 | 5 1/4 | 5 3/4 | 5 3/4 | 6 1/4 | 6 3/4 | 7 1/4 | ||||
| Length of Machine Bolt | 1/16 Ring Flange | 2 | 2 | 2 1/4 | 2 1/4 | 2 1/2 | 2 3/4 | 3 | 3 | 3 | 3 | 3 1/4 | 3 1/4 | 3 1/2 | 4 | 4 | 4 1/2 | 4 1/2 | 5 | 5 1/2 | 6 | |
| Ring No. | R15 | R17 | R19 | R22 | R25 | R29 | R33 | R36 | R40 | R43 | R48 | R52 | R56 | R59 | R64 | R68 | R72 | R76 |
| 300 | Nominal Pipe Size | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 3 1/2 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | |
| Number of Studs | 4 | 4 | 4 | 4 | 4 | 8 | 8 | 8 | 8 | 8 | 8 | 12 | 12 | 16 | 16 | 20 | 20 | 24 | 24 | 24 | ||
| Diameter of Studs | 1/2 | 5/8 | 5/8 | 5/8 | 3/4 | 5/8 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 7/8 | 1 | 1 1/8 | 1 1/8 | 1 1/4 | 1 1/4 | 1 1/4 | 1 1/2 | ||
| Length of Stud Bolts | 1/16 Ring Flange | 2 1/2 | 3 | 3 | 3 1/4 | 3 1/2 | 3 1/2 | 4 | 4 1/4 | 4 1/4 | 4 1/2 | 4 3/4 | 4 3/4 | 5 1/2 | 6 1/4 | 6 3/4 | 7 | 7 1/2 | 7 3/4 | 8 | 9 | |
| Ring Type Joint | 3 | 3 1/2 | 3 1/2 | 3 3/4 | 4 | 4 | 4 1/2 | 4 3/4 | 5 | 5 | 5 1/4 | 5 1/2 | 6 | 6 3/4 | 7 1/4 | 7 1/2 | 8 | 8 1/4 | 8 3/4 | 10 | ||
| Length of Machine Bolt | 1/16 Ring Flange | 2 1/4 | 2 1/2 | 2 1/2 | 2 3/4 | 3 | 3 | 3 1/4 | 3 1/2 | 3 3/4 | 3 3/4 | 4 1/4 | 4 1/4 | 4 3/4 | 5 1/2 | 5 3/4 | 6 1/4 | 6 1/2 | 6 3/4 | 7 1/4 | 8 | |
| Ring No. | R11 | R13 | R16 | R18 | R20 | R23 | R26 | R31 | R34 | R37 | R41 | R45 | R49 | R53 | R57 | R61 | R65 | R69 | R73 | R77 |
| 400 | Nominal Pipe Size | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 3 1/2 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | |
| Number of Studs | 4 | 4 | 4 | 4 | 4 | 8 | 8 | 8 | 8 | 8 | 8 | 12 | 12 | 16 | 16 | 20 | 20 | 24 | 24 | 24 | ||
| Diameter of Studs | 1/2 | 5/8 | 5/8 | 5/8 | 3/4 | 5/8 | 3/4 | 3/4 | 7/8 | 7/8 | 7/8 | 7/8 | 1 | 1 1/8 | 1 1/4 | 1 1/4 | 1 3/8 | 1 3/8 | 1 1/2 | 1 3/4 | ||
| Length of Stud Bolts | 1/4 Ring Flange | 3 | 3 1/2 | 3 1/2 | 3 3/4 | 4 1/4 | 4 1/4 | 4 3/4 | 5 | 5 1/2 | 5 1/2 | 5 3/4 | 6 | 6 3/4 | 7 1/2 | 8 | 8 1/4 | 8 3/4 | 9 | 9 1/2 | 10 1/2 | |
| Male & Female | 2 3/4 | 3 1/4 | 3 1/4 | 3 1/2 | 4 | 4 | 4 1/2 | 4 3/4 | 5 1/4 | 5 1/4 | 5 1/4 | 5 3/4 | 6 1/2 | 7 1/4 | 7 3/4 | 8 | 8 1/2 | 8 3/4 | 9 1/4 | 10 1/4 | ||
| Length of Machine Bolt | Ring Type Joint | 3 | 3 1/2 | 3 1/2 | 3 3/4 | 4 1/4 | 4 1/4 | 4 3/4 | 5 | 5 1/2 | 5 1/2 | 5 3/4 | 6 | 6 3/4 | 7 1/2 | 8 | 8 1/4 | 8 3/4 | 9 | 9 3/4 | 11 | |
| Ring No. | R11 | R13 | R16 | R18 | R20 | R23 | R26 | R31 | R34 | R37 | R41 | R45 | R49 | R53 | R57 | R61 | R65 | R69 | R73 |
R77 |
| 600 | Nominal Pipe Size | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 3 1/2 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | |
| Number of Studs | 4 | 4 | 4 | 4 | 4 | 8 | 8 | 8 | 8 | 8 | 8 | 12 | 12 | 16 | 20 | 20 | 20 | 20 | 24 | 24 | ||
| Diameter of Studs | 1/2 | 5/8 | 5/8 | 5/8 | 3/4 | 5/8 | 3/4 | 3/4 | 7/8 | 7/8 | 1 | 1 | 1 1/8 | 1 1/4 | 1 1/4 | 1 3/8 | 1 1/2 | 1 5/8 | 1 5/8 | 1 7/8 | ||
| Length of Stud Bolts | 1/4 Ring Flange | 3 | 3 1/2 | 3 1/2 | 3 3/4 | 4 1/4 | 4 1/4 | 4 3/4 | 5 | 5 1/2 | 5 3/4 | 6 1/2 | 6 3/4 | 7 1/2 | 8 1/2 | 8 3/4 | 9 1/4 | 10 | 10 3/4 | 11 1/4 | 13 | |
| Male & Female | 2 3/4 | 3 1/4 | 3 1/4 | 3 1/2 | 4 | 4 | 4 1/2 | 4 3/4 | 5 1/4 | 5 1/2 | 6 1/4 | 6 1/2 | 7 1/4 | 8 1/4 | 8 1/2 | 9 | 9 3/4 | 10 1/2 | 11 | 12 3/4 | ||
| Length of Machine Bolt | Ring Type Joint | 3 | 3 1/2 | 3 1/2 | 3 3/4 | 4 1/4 | 4 1/4 | 4 3/4 | 5 | 5 1/2 | 5 3/4 | 6 1/2 | 6 3/4 | 7 3/4 | 8 1/2 | 8 3/4 | 9 1/4 | 10 | 10 3/4 | 11 1/2 | 13 1/4 | |
| Ring No. | R11 | R13 | R16 | R18 | R20 | R23 | R26 | R31 | R34 | R37 | R41 | R45 | R49 | R53 | R57 | R61 | R65 | R69 | R73 | R77 |
| 900 | Nominal Pipe Size | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 3 1/2 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | |
| Number of Studs | 4 | 4 | 4 | 4 | 4 | 8 | 8 | 8 | 8 | 8 | 12 | 12 | 16 | 20 | 20 | 20 | 20 | 20 | 20 | |||
| Diameter of Studs | 3/4 | 3/4 | 7/8 | 7/8 | 1 | 7/8 | 1 | 7/8 | 1 1/8 | 1 1/4 | 1 1/8 | 1 3/8 | 1 3/8 | 1 3/8 | 1 1/2 | 1 5/8 | 1 7/8 | 2 | 2 1/2 | |||
| Length of Stud Bolts | 1/4 Ring Flange | 4 1/4 | 4 1/2 | 5 | 5 | 5 1/2 | 5 3/4 | 6 1/4 | 5 3/4 | 6 3/4 | 7 1/2 | 7 1/2 | 8 3/4 | 9 1/4 | 10 | 10 3/4 | 11 1/4 | 12 3/4 | 13 3/4 | 17 1/4 | ||
| Male & Female | 4 | 4 1/4 | 4 3/4 | 4 3/4 | 5 1/4 | 5 1/2 | 6 | 5 1/2 | 6 1/2 | 7 1/4 | 7 1/4 | 8 1/2 | 9 | 9 3/4 | 10 1/2 | 11 | 12 1/2 | 13 1/2 | 17 | |||
| Length of Machine Bolt | Ring Type Joint | 4 1/4 | 4 1/2 | 5 | 5 | 5 1/2 | 5 3/4 | 6 1/4 | 5 3/4 | 6 3/4 | 7 1/2 | 7 3/4 | 8 3/4 | 9 1/4 | 10 | 11 | 11 1/2 | 13 1/4 | 14 1/4 | 18 | ||
| Ring No. | R12 | R14 | R16 | R18 | R20 | R24 | R27 | R31 | R37 | R41 | R45 | R49 | R53 | R57 | R62 | R66 | R70 | R74 | R78 |
| 1500 | Nominal Pipe Size | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 3 1/2 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | |
| Number of Studs | 4 | 4 | 4 | 4 | 4 | 8 | 8 | 8 | 8 | 8 | 12 | 12 | 12 | 16 | 16 | 16 | 16 | 16 | 16 | |||
| Diameter of Studs | 3/4 | 3/4 | 7/8 | 7/8 | 1 | 7/8 | 1 | 1 1/8 | 1 1/4 | 1 1/2 | 1 3/8 | 1 5/8 | 1 7/8 | 2 | 2 1/4 | 2 1/2 | 2 3/4 | 3 | 3 1/2 | |||
| Length of Stud Bolts | 1/4 Ring Flange | 4 1/4 | 4 1/2 | 5 | 5 | 5 1/2 | 5 3/4 | 6 1/4 | 7 | 7 3/4 | 9 3/4 | 10 1/4 | 11 1/2 | 13 1/4 | 14 3/4 | 16 | 17 1/2 | 19 1/2 | 21 1/4 | 24 1/4 | ||
| Male & Female | 4 | 4 1/4 | 4 3/4 | 4 3/4 | 5 1/4 | 5 1/2 | 6 | 6 3/4 | 7 1/2 | 9 1/2 | 10 | 11 1/4 | 13 | 14 1/2 | 15 3/4 | 17 1/4 | 19 1/4 | 21 | 24 | |||
| Length of Machine Bolt | Ring Type Joint | 4 1/4 | 4 1/2 | 5 | 5 | 5 1/2 | 5 3/4 | 6 1/4 | 7 | 7 3/4 | 9 3/4 | 10 1/2 | 12 3/4 | 13 1/2 | 15 1/4 | 16 3/4 | 18 1/2 | 20 3/4 | 22 1/4 | 25 1/2 | ||
| Ring No. | R12 | R14 | R16 | R18 | R20 | R24 | R27 | R35 | R39 | R44 | R46 | R50 | R54 | R58 | R63 | R67 | R71 | R75 | R79 |
| 2500 | Nominal Pipe Size | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 3 1/2 | 4 | 5 | 6 | 8 | 10 | 12 | |
| Number of Studs | 4 | 4 | 4 | 4 | 4 | 8 | 8 | 8 | 8 | 8 | 8 | 12 | 12 | 12 | |||
| Diameter of Studs | 3/4 | 3/4 | 7/8 | 1 | 1 1/8 | 1 | 1 1/8 | 1 1/4 | 1 1/2 | 1 3/4 | 2 | 2 | 2 1/2 | 2 3/4 | |||
| Length of Stud Bolts | 1/4 Ring Flange | 4 3/4 | 5 | 5 1/2 | 6 | 6 3/4 | 7 | 7 3/4 | 8 3/4 | 10 | 11 3/4 | 13 1/2 | 15 | 19 1/4 | 21 1/4 | ||
| Male & Female | 4 1/2 | 4 3/4 | 5 1/4 | 5 3/4 | 6 1/2 | 6 3/4 | 7 1/2 | 8 1/2 | 9 3/4 | 11 1/2 | 13 1/4 | 14 3/4 | 19 | 21 | |||
| Length of Machine Bolt | Ring Type Joint | 4 3/4 | 5 | 5 1/2 | 6 | 6 3/4 | 7 | 8 | 9 | 10 1/4 | 12 1/4 | 14 | 15 1/2 | 20 | 22 | ||
| Ring No. | R13 | R16 | R18 | R21 | R23 | R26 | R28 | R32 | R38 | R42 | R47 | R51 | R55 | R60 |