ASME B16.5 — Class 600 stud bolts
ASME B16.5 Class 600 stud bolts — 20 sizes.
| NPS | No. of studs | Stud dia — in (in) | Length — Raised face, mm (mm) | Length — Ring joint, mm (mm) |
|---|---|---|---|---|
| ½" | 4 | ½" | 75 | 75 |
| ¾" | 4 | ⅝" | 90 | 90 |
| 1" | 4 | ⅝" | 90 | 90 |
| 1¼" | 4 | ⅝" | 95 | 95 |
| 1½" | 4 | ¾" | 110 | 110 |
| 2" | 8 | ⅝" | 110 | 110 |
| 2½" | 8 | ¾" | 120 | 120 |
| 3" | 8 | ¾" | 125 | 125 |
| 3½" | 8 | ⅞" | 140 | 140 |
| 4" | 8 | ⅞" | 145 | 145 |
| 5" | 8 | 1" | 165 | 165 |
| 6" | 12 | 1" | 170 | 170 |
| 8" | 12 | 1⅛" | 190 | 195 |
| 10" | 16 | 1¼" | 215 | 215 |
| 12" | 20 | 1¼" | 220 | 220 |
| 14" | 20 | 1⅜" | 235 | 235 |
| 16" | 20 | 1½" | 255 | 255 |
| 18" | 20 | 1⅝" | 275 | 275 |
| 20" | 24 | 1⅝" | 285 | 290 |
| 24" | 24 | 1⅞" | 330 | 335 |
- Lengths are in millimetres for a 2 mm raised face (Class 150 and 300) or 7 mm raised face (Class 600 and above), and for ring-joint flanges with the standard ring.
- Stud lengths are those tabulated in ASME B16.5 and do not include the height of the points.
- Different lengths are needed for lap joint flanges, for spectacle blinds or orifice plates in the joint, and when bolt tensioners are used.