Our high-performance stud bolting solutions are the preferred choice for high-pressure ASME B16.5 and B16.47 flanged joints. Each set features a stud bolt paired with two heavy hex nuts and two optional hardened plain washers, delivering optimal preload control and uniform clamping force. These assemblies offer excellent vibration resistance and ensure superior joint integrity.
Available size for pipe flange Class 150
| Size | Flange bolting | Stub bolt | Heavy hex nut and plain washer | Ref. No. |
|---|---|---|---|---|
| 1/2″ / DN15 / 21.3mm | 4 x 5/8″ | 1/2″ (M14) x 55 | 1/2″ (M14) | N9701-150 |
| 3/4″ / DN20 / 26.7mm | 4 x 5/8″ | 1/2″ (M14) x 65 | 1/2″ (M14) | N9702-150 |
| 1″ / DN25 / 33.4mm | 4 x 5/8″ | 1/2″ (M14) x 65 | 1/2″ (M14) | N9703-150 |
| 1-1/4″ / DN32 / 42.2mm | 4 x 5/8″ | 1/2″ (M14) x 70 | 1/2″ (M14) | N9704-150 |
| 1-1/2″ / DN40 / 48.3mm | 4 x 5/8″ | 1/2″ (M14) x 70 | 1/2″ (M14) | N9705-150 |
| 2″ / DN50 / 60.3mm | 4 x 3/4″ | 5/8″ (M16) x 85 | 5/8″ (M16) | N9706-150 |
| 2-1/2″ / DN65 / 73.0mm | 4 x 3/4″ | 5/8″ (M16) x 90 | 5/8″ (M16) | N9707-150 |
| 3″ / DN80 / 88.9mm | 4 x 3/4″ | 5/8″ (M16) x 90 | 5/8″ (M16) | N9708-150 |
| 4″ / DN100 / 114.3mm | 8 x 3/4″ | 5/8″ (M16) x 90 | 5/8″ (M16) | N9709-150 |
| 5″ / DN125 / 141.3mm | 8 x 7/8″ | 3/4″ (M20) x 95 | 3/4″ (M20) | N9710-150 |
| 6″ / DN150 / 168.3mm | 8 x 7/8″ | 3/4″ (M20) x 100 | 3/4″ (M20) | N9711-150 |
| 8″ / DN200 / 219.1mm | 8 x 7/8″ | 3/4″ (M20) x 110 | 3/4″ (M20) | N9712-150 |
| 10″ / DN250 / 273.0mm | 12 x 1″ | 7/8″ (M24) x 115 | 7/8″ (M24) | N9713-150 |
| 12″ / DN300 / 323.8mm | 12 x 1″ | 7/8″ (M24) x 120 | 7/8″ (M24) | N9714-150 |
| 14″ / DN350 / 355.6mm | 12 x 1-1/8″ | 1″ (M27) x 135 | 1″ (M27) | N9715-150 |
Note:
Please download our catalog for more available sizes.
Available size for pipe flange Class 300
| Size | Flange bolting | Stub bolt | Heavy hex nut and plain washer | Ref. No. |
|---|---|---|---|---|
| 1/2″ / DN15 / 21.3mm | 4 x 5/8″ | 1/2″ (M14) x 65 | 1/2″ (M14) | N9701-300 |
| 3/4″ / DN20 / 26.7mm | 4 x 3/4″ | 5/8″ (M16) x 75 | 5/8″ (M16) | N9702-300 |
| 1″ / DN25 / 33.4mm | 4 x 3/4″ | 5/8″ (M16) x 75 | 5/8″ (M16) | N9703-300 |
| 1-1/4″ / DN32 / 42.2mm | 4 x 3/4″ | 5/8″ (M16) x 85 | 5/8″ (M16) | N9704-300 |
| 1-1/2″ / DN40 / 48.3mm | 4 x 7/8″ | 3/4″ (M20) x 90 | 3/4″ (M20) | N9705-300 |
| 2″ / DN50 / 60.3mm | 8 x 3/4″ | 5/8″ (M16) x 90 | 5/8″ (M16) | N9706-300 |
| 2-1/2″ / DN65 / 73.0mm | 8 x 7/8″ | 3/4″ (M20) x 100 | 3/4″ (M20) | N9707-300 |
| 3″ / DN80 / 88.9mm | 8 x 7/8″ | 3/4″ (M20) x 110 | 3/4″ (M20) | N9708-300 |
| 4″ / DN100 / 114.3mm | 8 x 7/8″ | 3/4″ (M20) x 115 | 3/4″ (M20) | N9709-300 |
| 5″ / DN125 / 141.3mm | 8 x 7/8″ | 3/4″ (M20) x 120 | 3/4″ (M20) | N9710-300 |
| 6″ / DN150 / 168.3mm | 12 x 7/8″ | 3/4″ (M20) x 120 | 3/4″ (M20) | N9711-300 |
| 8″ / DN200 / 219.1mm | 12 x 1″ | 7/8″ (M24) x 140 | 7/8″ (M24) | N9712-300 |
| 10″ / DN250 / 273.0mm | 16 x 1-1/8″ | 1″ (M27) x 160 | 1″ (M27) | N9713-300 |
| 12″ / DN300 / 323.8mm | 16 x 1-1/4″ | 1-1/8″ (M30) x 170 | 1-1/8″ (M30) | N9714-300 |
| 14″ / DN350 / 355.6mm | 20 x 1-1/4″ | 1-1/8″ (M30) x 180 | 1-1/8″ (M30) | N9715-300 |
Note:
Please download our catalog for more available sizes.
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