CLass | 150 | 300 | 600 | 900 | 1500 | 2500 |
DIA A |
49 | 54 | 54 | 52 | 52 | … |
DIA D |
110 | 125 | 125 | 150 | 150 | … |
THK B |
12.7 | 15.9 | 17.5 | 28.6 | 28.6 | … |
14.3 | 17.5 | 23.9 | 35 | 35 | … | |
DIA G |
50.8 | 50.8 | 50.8 | 50.8 | 50.8 | … |
DIA K |
79.4 | 88.9 | 88.9 | 101.6 | 101.6 | … |
H | 16 | 25 | 27 | 41 | 41 | … |
17.6 | 26.6 | 33.4 | 47.4 | 47.4 | … | |
NO. L |
4 | 4 | 4 | 4 | 4 | … |
DIA L |
15.9 | 19.1 | 19.1 | 25.4 | 25.4 | … |
Stud Bolts Diameter x Length | ||||||
DIA (in) |
1/2 | 5/8 | 5/8 | 7/8 | 7/8 | … |
Len mm |
65 | 75 | 90 | 125 | 125 | … |
Notes:
- Dimensions are in millimeters unless otherwise indicated.
- The length of the Stud Bolt does not include the height of the chamfers (points).

Tolerances not listed in ASME B16.5 2013
≤ 24 = 1.6 mm
> 24 = ± 3.2 mm
≤ 10 = ± 0.8 mm
≥ 12 = + 1.6 mm / – 0 mm
≤ 12 = + 2.4 mm / – 1.6 mm
≥ 14 = ± 3.2 mm
Same as for Inside Diameter
Bolt Circle = 1.6 mm
Bolt Hole Spacing = ± 0.8 mm
≤ 2.1/2 = 0.8 mm max.
≥ 3 = 1.6 mm max.
≤ 18 = + 3.2 mm / – 0
≥ 20 = + 4.8 mm / – 0
≤ 18 = + 3.2 mm / – 0.8 mm
≥ 20 = + 4.8 mm / – 1.6 mm
1.6 mm Raised Face = ± 0.8 mm
6.35 mm Raised Face, Tongue and Groove / Male-Female = ± 0.4 mm