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RTJ flanges dimensions are covered in ASME B16.5 – which covers Pipe Flanges and Flanged Fittings for size NPS ½” to 24” for above NPS 26” to 60” it should be as per ASME B16.47.

During a dimensional inspection of RTJ flange, you should check for

  • Outer & Inner Diameter of body
  • Bolt Circle & Bolt hole Diameter
  • Thickness of weld end
  • Length of the Hub
  • Straightness and alignment of the bolt hole
  • RTJ Groove Dimensions
rtj flange dimensions

Class 150 Weld neck RTJ Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thickness Hub OD Weld Neck OD Welding Neck Length RTJ RF Dia RTJ RF Height PCD RTJ Pitch dia RTJ Depth RTJ Width Bore
A B C D E F G H I J K L
1/2 15 90 9.6 30 21.3 46 N/A N/A 60.3 N/A N/A N/A Welding Neck bore is derived from the pipe schedule
3/4 20 100 11.2 38 26.7 51 N/A N/A 69.9 N/A N/A N/A
1 25 110 12.7 49 33.4 54 63.5 6.35 79.4 47.63 6.35 8.74
1 1/4 32 115 14.3 59 42.2 56 73 6.35 88.9 57.15 6.35 8.74
1 1/2 40 125 15.9 65 48.3 60 82.5 6.35 98.4 65.07 6.35 8.74
2 50 150 17.5 78 60.3 62 102 6.35 120.7 82.55 6.35 8.74
2 1/2 65 180 20.7 90 73 68 121 6.35 139.7 101.6 6.35 8.74
3 80 190 22.3 108 88.9 68 133 6.35 152.4 114.3 6.35 8.74
3 1/2 90 215 22.3 122 101.6 70 154 6.35 177.8 131.78 6.35 8.74
4 100 230 22.3 135 114.3 75 171 6.35 190.5 149.23 6.35 8.74
5 125 255 22.3 164 141.3 87 194 6.35 215.9 171.45 6.35 8.74
6 150 280 23.9 192 168.3 87 219 6.35 241.3 193.68 6.35 8.74
8 200 345 27 246 219.1 100 273 6.35 298.5 247.65 6.35 8.74
10 250 405 28.6 305 273 100 330 6.35 362 304.8 6.35 8.74
12 300 485 30.2 365 323.8 113 406 6.35 431.8 381 6.35 8.74
14 350 535 33.4 400 355.6 125 425 6.35 476.3 396.88 6.35 8.74
16 400 595 35 457 406.4 125 483 6.35 539.8 454.03 6.35 8.74
18 450 635 38.1 505 457.2 138 546 6.35 577.9 517.53 6.35 8.74
20 500 700 41.3 559 508 143 597 6.35 635 558.8 6.35 8.74
24 600 815 46.1 663 610 151 711 6.35 749.3 673.1 6.35 8.74

Class 150 Weld neck RTJ Flange Stud & Bolt Dimensions

RTJ Root Radius Ring no Distance Between Flanges No of Bolts Bolt Size UNC Machine Bolt Length RTJ Stud Length Hole Size ISO Stud Size
0.8 N/A N/A 4 1/2 50 N/A 5/8 M14
0.8 N/A N/A 4 1/2 50 N/A 5/8 M14
0.8 15 4 4 1/2 55 75 5/8 M14
0.8 17 4 4 1/2 55 85 5/8 M14
0.8 19 4 4 1/2 65 85 5/8 M14
0.8 22 4 4 5/8 70 95 3/4 M16
0.8 25 4 4 5/8 75 100 3/4 M16
0.8 29 4 4 5/8 75 100 3/4 M16
0.8 33 4 8 5/8 75 100 3/4 M16
0.8 36 4 8 5/8 75 100 3/4 M16
0.8 40 4 8 3/4 85 110 7/8 M20
0.8 43 4 8 3/4 85 115 7/8 M20
0.8 48 4 8 3/4 90 120 7/8 M20
0.8 52 4 12 7/8 100 125 1 M24
0.8 56 4 12 7/8 100 135 1 M24
0.8 59 3 12 1 115 145 1 1/8 M27
0.8 64 3 16 1 115 145 1 1/8 M27
0.8 68 3 16 1 1/8 125 160 1 1/4 M30
0.8 72 3 20 1 1/8 140 170 1 1/4 M30
0.8 76 3 20 1 1/4 150 185 1 3/8 M33
Piping Courses

Class 300 Weld neck RTJ Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thickness Hub OD Weld Neck OD Welding Neck Length RTJ RF Dia RTJ RF Height PCD RTJ Pitch dia RTJ Depth RTJ Width Bore
A B C D E F G H I J K L
1/2 15 95 12.7 38 21.3 51 51 5.54 66.7 34.14 5.54 7.14 Welding Neck bore is derived from the pipe schedule
3/4 20 115 14.3 48 26.7 56 63.5 6.35 82.6 42.88 6.35 8.74
1 25 125 15.9 54 33.4 60 70 6.35 88.9 50.8 6.35 8.74
1 1/4 32 135 17.5 64 42.2 64 79.5 6.35 98.4 60.33 6.35 8.74
1 1/2 40 155 19.1 70 48.3 67 90.5 6.35 114.3 68.27 6.35 8.74
2 50 165 20.7 84 60.3 68 108 7.92 127 82.55 7.92 11.91
2 1/2 65 190 23.9 100 73 75 127 7.92 149.2 101.6 7.92 11.91
3 80 210 27 117 88.9 78 146 7.92 168.3 123.83 7.92 11.91
3 1/2 90 230 28.6 133 101.6 79 159 7.92 184.2 131.78 7.92 11.91
4 100 255 30.2 146 114.3 84 175 7.92 200 149.23 7.92 11.91
5 125 280 33.4 178 141.3 97 210 7.92 235 180.98 7.92 11.91
6 150 320 35 206 168.3 97 241 7.92 269.9 211.12 7.92 11.91
8 200 380 39.7 260 219.1 110 302 7.92 330.2 269.88 7.92 11.91
10 250 445 46.1 321 273 116 356 7.92 387.4 323.85 7.92 11.91
12 300 520 49.3 375 323.8 129 413 7.92 450.8 381 7.92 11.91
14 350 585 52.4 425 355.6 141 457 7.92 514.4 419.1 7.92 11.91
16 400 650 55.6 483 406.4 144 508 7.92 571.5 469.9 7.92 11.91
18 450 710 58.8 533 457 157 575 7.92 628.6 533.4 7.92 11.91
20 500 775 62 587 508 160 635 9.53 685.8 584.2 9.53 13.49
24 600 915 68.3 702 610 167 749 11.13 812.8 692.15 11.13 16.66

Class 300 Weld neck RTJ Flange Stud & Bolt Dimensions

RTJ Root Radius Ring no Distance Between Flanges No of Bolts Bolt Size UNC Machine Bolt Length RTJ Stud Length Hole Size ISO Stud Size
0.8 R11 3 4 1/2 55 75 5/8 M14
0.8 13 4 4 5/8 65 90 3/4 M16
0.8 16 4 4 5/8 65 90 3/4 M16
0.8 18 4 4 5/8 70 95 3/4 M16
0.8 20 4 4 3/4 75 100 7/8 M20
0.8 23 6 8 5/8 75 100 3/4 M16
0.8 26 6 8 3/4 85 115 7/8 M20
0.8 31 6 8 3/4 90 120 7/8 M20
0.8 34 6 8 3/4 95 125 7/8 M20
0.8 37 6 8 3/4 95 125 7/8 M20
0.8 41 6 8 3/4 110 135 7/8 M20
0.8 45 6 12 3/4 110 140 7/8 M20
0.8 49 6 12 7/8 120 150 1 M24
0.8 53 6 16 1 140 170 1 1/8 M27
0.8 57 6 16 1 1/8 145 185 1 1/4 M30
0.8 61 6 20 1 1/8 160 190 1 1/4 M30
0.8 65 6 20 1 1/4 165 205 1 3/8 M33
0.8 69 6 24 1 1/4 170 210 1 3/8 M33
1.5 73 6 24 1 1/4 185 220 1 3/8 M33
1.5 77 6 24 1 1/2 205 255 1 5/8 M39

Class 400 Weld neck RTJ Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thickness Hub OD Weld Neck OD Welding Neck Length RTJ RF Dia RTJ RF Height PCD RTJ Pitch dia RTJ Depth RTJ Width Bore
A B C D E F G H I J K L
1/2 15 95 14.3 38 21.3 52 51 5.54 66.7 34.14 5.54 7.14 Welding Neck bore is derived from the pipe schedule
3/4 20 115 15.9 48 26.7 57 63.5 6.35 82.6 42.88 6.35 8.74
1 25 125 17.5 54 33.4 62 70 6.35 88.9 50.8 6.35 8.74
1 1/4 32 135 20.7 64 42.2 67 79.5 6.35 98.4 60.33 6.35 8.74
1 1/2 40 155 22.3 70 48.3 70 90.5 6.35 114.3 68.27 6.35 8.74
2 50 165 25.4 84 60.3 73 108 7.92 127 82.55 7.92 11.9
2 1/2 65 190 28.6 100 73 79 127 7.92 149.2 101.6 7.92 11.9
3 80 210 31.8 117 88.9 83 146 7.92 168.3 123.83 7.92 11.9
3 1/2 90 230 35 133 101.6 86 159 7.92 184.2 131.78 7.92 11.9
4 100 255 35 146 114.3 89 175 7.92 200 149.23 7.92 11.91
5 125 280 38.1 178 141.3 102 210 7.92 235 180.98 7.92 11.91
6 150 320 41.3 206 168.3 103 241 7.92 269.9 211.12 7.92 11.91
8 200 380 47.7 260 219.1 117 302 7.92 330 269.88 7.92 11.91
10 250 445 54 321 273 124 356 7.92 387.4 323.85 7.92 11.91
12 300 520 57.2 375 323.8 137 413 7.92 450.8 381 7.92 11.91
14 350 585 60.4 425 355.6 149 457 7.92 514.4 419.1 7.92 11.91
16 400 650 63.5 483 406.4 152 508 7.92 571.5 469.9 7.92 11.91
18 450 710 66.7 533 457 165 575 7.92 628.6 533.4 7.92 11.91
20 500 775 69.9 587 508 168 635 9.53 685.8 584.2 9.53 13.49
24 600 915 76.2 702 610 175 749 11.13 812.8 692.15 11.13 16.66

Class 400 Weld neck RTJ Flange Stud & Bolt Dimensions

RTJ Root Radius Ring no Distance Between Flanges No of Bolts Bolt Size UNC RTJ Stud Length Hole Size ISO Stud Size
0.8 11 3 4 1/2 75 5/8 M14
0.8 13 4 4 5/8 90 3/4 M16
0.8 16 4 4 5/8 90 3/4 M16
0.8 18 4 4 5/8 95 3/4 M16
0.8 20 4 4 3/4 110 7/8 M20
0.8 23 5 8 5/8 110 3/4 M16
0.8 26 5 8 3/4 120 7/8 M20
0.8 31 5 8 3/4 125 7/8 M20
0.8 34 5 8 7/8 140 1 M24
0.8 37 6 8 7/8 140 1 M24
0.8 41 6 8 7/8 145 1 M24
0.8 45 6 12 7/8 150 1 M24
0.8 49 6 12 1 170 1 1/8 M27
0.8 53 6 16 1 1/8 190 1 1/4 M30
0.8 57 6 16 1 1/4 205 1 3/8 M33
0.8 61 6 20 1 1/4 210 1 3/8 M33
0.8 65 6 20 1 3/8 220 1 1/2 M36
0.8 69 6 24 1 3/8 230 1 1/2 M36
1.5 73 6 24 1 1/2 250 1 3/4 M39
1.5 77 6 24 1 3/4 280 1 7/8 M45

Class 600 Weld neck RTJ Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thickness Hub OD Weld Neck OD Welding Neck Length RTJ RF Dia RTJ RF Height PCD RTJ Pitch dia RTJ Depth RTJ Width Bore
A B C D E F G H I J K L
1/2 15 95 14.3 38 21.3 52 51 5.54 66.7 34.14 5.54 7.14 Welding Neck bore is derived from the pipe schedule
3/4 20 115 15.9 48 26.7 57 63.5 6.35 82.6 42.88 6.35 8.74
1 25 125 17.5 54 33.4 62 70 6.35 88.9 50.8 6.35 8.74
1 1/4 32 135 20.7 64 42.2 67 79.5 6.35 98.4 60.33 6.35 8.74
1 1/2 40 155 22.3 70 48.3 70 90.5 6.35 114.3 68.27 6.35 8.74
2 50 165 25.4 84 60.3 73 108 7.92 127 82.55 7.92 11.91
2 1/2 65 190 28.6 100 73 79 127 7.92 149.2 101.6 7.92 11.91
3 80 210 31.8 117 88.9 83 146 7.92 168.3 123.83 7.92 11.91
3 1/2 90 230 35 133 101.6 86 159 7.92 184.2 131.78 7.92 11.91
4 100 275 38.1 152 114.3 102 175 7.92 215.9 149.23 7.92 11.91
5 125 330 44.5 189 141.3 114 210 7.92 266.7 180.98 7.92 11.91
6 150 355 47.7 222 168.3 117 241 7.92 292.1 211.12 7.92 11.91
8 200 420 55.6 273 219.1 133 302 7.92 349.2 269.88 7.92 11.91
10 250 510 63.5 343 273 152 356 7.92 431.8 323.85 7.92 11.91
12 300 560 66.7 400 323.8 156 413 7.92 489 381 7.92 11.91
14 350 605 69.9 432 355.6 165 457 7.92 527 419.1 7.92 11.91
16 400 685 76.2 495 406.4 178 508 7.92 603.2 469.9 7.92 11.91
18 450 745 82.6 546 457 184 575 7.92 654 533.4 7.92 11.91
20 500 815 88.9 610 508 190 635 9.53 723.9 584.2 9.53 13.49
24 600 940 101.6 718 610 203 749 11.13 838.2 692.15 11.13 16.66

Class 600 Weld neck RTJ Flange Stud & Bolt Dimensions

RTJ Root Radius Ring no Distance Between Flanges No of Bolts Bolt Size UNC RTJ Stud Length Hole Size ISO Stud Size
0.8 R11 3 4 1/2 75 5/8 M14
0.8 13 4 4 5/8 90 3/4 M16
0.8 16 4 4 5/8 90 3/4 M16
0.8 18 4 4 5/8 95 3/4 M16
0.8 20 4 4 3/4 110 7/8 M20
0.8 23 5 8 5/8 110 3/4 M16
0.8 26 5 8 3/4 120 7/8 M20
0.8 31 5 8 3/4 125 7/8 M20
0.8 34 5 8 7/8 140 1 M24
0.8 37 5 8 7/8 145 1 M24
0.8 41 5 8 1 165 1 1/8 M27
0.8 45 5 12 1 170 1 1/8 M27
0.8 49 5 12 1 1/8 195 1 1/4 M30
0.8 53 5 16 1 1/4 215 1 3/8 M33
0.8 57 5 20 1 1/4 220 1 3/8 M33
0.8 61 5 20 1 3/8 235 1 1/2 M36
0.8 65 5 20 1 1/2 255 1 5/8 M39
0.8 69 5 20 1 5/8 275 1 3/4 M42
1.5 73 5 24 1 5/8 290 1 3/4 M42
1.5 77 6 24 1 7/8 335 2 M48

Class 900 Weld neck RTJ Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thickness Hub OD Weld Neck OD Welding Neck Length RTJ RF Dia RTJ RF Height PCD RTJ Pitch dia RTJ Depth RTJ Width Bore
A B C D E F G H I J K L
1/2 15 120 22.3 38 21.3 60 60.5 6.35 82.6 39.67 6.35 8.74 Welding Neck bore is derived from the pipe schedule
3/4 20 130 25.4 44 26.7 70 66.5 6.35 88.9 44.45 6.35 8.74
1 25 150 28.6 52 33.4 73 71.5 6.35 101.6 50.8 6.35 8.74
1 1/4 32 160 28.6 64 42.2 73 81 6.35 111.1 60.33 6.35 8.74
1 1/2 40 180 31.8 70 48.3 83 92 6.35 123.8 68.27 6.35 8.74
2 50 215 38.1 105 60.3 102 124 7.92 165.1 95.25 7.92 11.91
2 1/2 65 245 41.3 124 73 105 137 7.92 190.5 107.95 7.92 11.91
3 80 240 38.1 127 88.9 102 156 7.92 190.5 123.83 7.92 11.91
4 100 290 44.5 159 114.3 114 181 7.92 235 149.23 7.92 11.91
5 125 350 50.8 190 141.3 127 216 7.92 279.4 180.98 7.92 11.91
6 150 380 55.6 235 168.3 140 241 7.92 317.5 211.12 7.92 11.91
8 200 470 63.5 298 219.1 162 308 7.92 393.7 269.88 7.92 11.91
10 250 545 69.9 368 273 184 362 7.92 469.9 323.85 7.92 11.91
12 300 610 79.4 419 323.8 200 419 7.92 533.4 381 7.92 11.91
14 350 640 85.8 451 355.6 213 467 11.13 558.8 419.1 11.13 16.66
16 400 705 88.9 508 406.4 216 524 11.13 616 469.9 11.13 16.66
18 450 785 101.6 565 457 229 594 12.7 685.8 533.4 12.7 19.84
20 500 855 108 622 508 248 648 12.7 749.3 584.2 12.7 19.84
24 600 1040 139.7 749 610 292 772 15.88 901.7 692.15 15.88 26.97

Class 900 Weld neck RTJ Flange Stud & Bolt Dimensions

RTJ Root Radius Ring no Distance Between Flanges No of Bolts Bolt Size UNC RTJ Stud Length Hole Size ISO Stud Size
0.8 12 4 4 3/4 110 7/8 M20
0.8 14 4 4 3/4 115 7/8 M20
0.8 16 4 4 7/8 125 1 M24
0.8 18 4 4 7/8 125 1 M24
0.8 20 4 4 1 140 1 1/8 M27
0.8 24 3 8 7/8 145 1 M24
0.8 27 3 8 1 160 1 1/8 M27
0.8 31 4 8 7/8 145 1 M24
0.8 37 4 8 1 1/8 170 1 1/4 M30
0.8 41 4 8 1 1/4 190 1 3/8 M33
0.8 45 4 12 1 1/8 195 1 1/4 M30
0.8 49 4 12 1 3/8 220 1 1/2 M36
0.8 53 4 16 1 3/8 235 1 1/2 M36
0.8 57 4 20 1 3/8 255 1 1/2 M36
1.5 62 4 20 1 1/2 280 1 5/8 M39
1.5 66 4 20 1 5/8 290 1 3/4 M42
1.5 70 5 20 1 7/8 335 2 M48
1.5 74 5 20 2 360 2 1/8 M52
2.4 78 6 20 2 1/2 455 2 5/8 M64

Class 1500 Weld neck RTJ Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thickness Hub OD Weld Neck OD Welding Neck Length RTJ RF Dia RTJ RF Height PCD RTJ Pitch dia RTJ Depth RTJ Width Bore
A B C D E F G H I J K L
1/2 15 120 22.3 38 21.3 60 60.5 6.35 82.6 39.67 6.35 8.74 Welding Neck bore is derived from the pipe schedule
3/4 20 130 25.4 44 26.7 70 66.5 6.35 88.9 44.45 6.35 8.74
1 25 150 28.6 52 33.4 73 71.5 6.35 101.6 50.8 6.35 8.74
1 1/4 32 160 28.6 64 42.2 73 81 6.35 111.1 60.33 6.35 8.74
1 1/2 40 180 31.8 70 48.3 83 92 6.35 123.8 68.27 6.35 8.74
2 50 215 38.1 105 60.3 102 124 7.92 165.1 95.25 7.92 11.91
2 1/2 65 245 41.3 124 73 105 137 7.92 190.5 107.95 7.92 11.91
3 80 265 47.7 133 88.9 117 168 7.92 203.2 136.53 7.92 11.91
4 100 310 54 162 114.3 124 194 7.92 241.3 161.93 7.92 11.91
5 125 375 73.1 197 141.3 156 229 7.92 292.1 193.68 7.92 11.91
6 150 395 82.6 229 168.3 171 248 9.53 317.5 211.14 9.53 13.49
8 200 485 92.1 292 219.1 213 318 11.13 393.7 269.88 11.13 16.66
10 250 585 108 368 273 254 371 11.13 482.6 323.85 11.13 16.66
12 300 675 123.9 451 323.8 283 438 14.27 571.5 381 14.27 23.01
14 350 750 133.4 495 355.6 298 489 15.88 635 419.1 15.88 26.97
16 400 825 146.1 552 406.4 311 546 17.48 704.8 469.9 17.48 30.18
18 450 915 162 597 457 327 613 17.48 774.7 533.4 17.48 30.18
20 500 985 177.8 641 508 356 673 17.48 831.8 584.2 17.48 33.32
24 600 1170 203.2 762 610 406 794 20.62 990.6 692.15 20.62 36.53

Class 1500 Weld neck RTJ Flange Stud & Bolt Dimensions

RTJ Root Radius Ring no Distance Between Flanges No of Bolts Bolt Size UNC RTJ Stud Length Hole Size ISO Stud Size
0.8 12 4 4 3/4 110 7/8 M20
0.8 14 4 4 3/4 115 7/8 M20
0.8 16 4 4 7/8 125 1 M24
0.8 18 4 4 7/8 125 1 M24
0.8 20 4 4 1 140 1 1/8 M27
0.8 24 3 8 7/8 145 1 M24
0.8 27 3 8 1 160 1 1/8 M27
0.8 35 3 8 1 1/8 180 1 1/4 M30
0.8 39 3 8 1 1/4 195 1 3/8 M33
0.8 44 3 8 1 1/2 250 1 5/8 M39
1.5 46 3 12 1 3/8 265 1 1/2 M36
1.5 50 4 12 1 5/8 325 1 3/4 M42
1.5 54 4 12 1 7/8 345 2 M48
1.5 58 5 16 2 385 2 1/8 M52
2.4 63 6 16 2 1/4 425 2 3/8 M56
2.4 67 8 16 2 1/2 470 2 5/8 M64
2.4 71 8 16 2 3/4 525 2 7/8 M72
2.4 75 10 16 3 565 3 1/8 M76
2.4 79 11 16 3 1/2 650 3 5/8 M90

Class 2500 Weld neck RTJ Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thickness Hub OD Weld Neck OD Welding Neck Length RTJ RF Dia RTJ RF Height PCD RTJ Pitch dia RTJ Depth RTJ Width Bore
A B C D E F G H I J K L
1/2 15 135 30.2 43 21.3 73 65 6.35 88.9 42.88 6.35 8.74 Welding Neck bore is derived from the pipe schedule
3/4 20 140 31.8 51 26.7 79 73 6.35 95.2 50.8 6.35 8.74
1 25 160 35 57 33.4 89 82.5 6.35 108 60.33 6.35 8.74
1 1/4 32 185 38.1 73 42.2 95 102 7.92 130.2 72.23 7.92 11.91
1 1/2 40 205 44.5 79 48.3 111 114 7.92 146 82.55 7.92 11.91
2 50 235 50.9 95 60.3 127 133 7.92 171.4 101.6 7.92 11.91
2 1/2 65 265 57.2 114 73 143 149 9.53 196.8 111.13 9.52 13.49
3 80 305 66.7 133 88.9 168 168 9.53 228.6 127 9.52 13.49
4 100 355 76.2 165 114.3 190 203 11.13 273 157.18 11.13 16.66
5 125 420 92.1 203 141.3 229 241 12.7 323.8 190.5 12.7 19.84
6 150 485 108 235 168.3 273 279 12.7 368.3 228.6 12.7 19.84
8 200 550 127 305 219.1 318 340 14.27 438.2 279.4 14.27 23.01
10 250 675 165.1 375 273 419 425 17.48 539.8 342.9 17.48 30.18
12 300 760 184.2 441 323.8 464 495 17.48 619.1 406.4 17.48 33.32

Class 2500 Weld neck RTJ Flange Stud & Bolt Dimensions

RTJ Root Radius Ring no Distance Between Flanges No of Bolts Bolt Size UNC RTJ Stud Length Hole Size ISO Stud Size
0.8 13 4 4 3/4 120 7/8 M20
0.8 16 4 4 3/4 125 7/8 M20
0.8 18 4 4 7/8 140 1 M24
0.8 21 3 4 1 150 1 1/8 M27
0.8 23 3 4 1 1/8 170 1 1/4 M30
0.8 26 3 8 1 180 1 1/8 M27
1.5 28 3 8 1 1/8 205 1 1/4 M30
1.5 32 3 8 1 1/4 230 1 3/8 M33
1.5 38 4 8 1 1/2 260 1 5/8 M39
1.5 42 4 8 1 3/4 310 1 7/8 M45
1.5 47 4 8 2 355 2 1/8 M52
1.5 51 5 12 2 395 2 1/8 M52
2.4 55 6 12 2 1/2 510 2 5/8 M64
2.4 60 8 12 2 3/4 560 2 7/8 M72

Disclaimer –  Please check with ASME B16.5 Before using.