BS 4504 / PN10

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material-composition
NOMINAL PIPE SIZE OUTSIDE DIA.(MM) DIA. OF BOLT CIRCLE (MM) DIA. OF HOLE (MM) NUMBER OF HOLE DIA. OF BORE THICKNESS MIN. (MM) CHAMFERING APPROX. WEIGHT (KG)
  D C h   do t X  
10 90 60 14 4 21 14 3  
15 95 65 14 4 25 14 3  
20 105 75 14 4 31 16 4  
25 115 85 14 4 38 16 4  
32 140 100 18 4 47 18 5  
40 150 110 18 4 53 18 5  
50 165 125 18 4 65 20 5  
65 185 145 18 4 81 20 6  
80 200 160 18 8 94 20 6  
100 220 180 18 8 120 22 6  
125 250 210 18 8 145 22 6  
150 285 240 22 8 174 24 6  
200 340 295 22 12 226 24 6  
250 405 355 26 12 281 26 8  
300 460 410 26 12 333 26 8  
350 520 470 26 16 365 28 8  
400 580 525 30 16 416 32 8  
450 640 585 30 20 467 36 8  
500 715 650 33 20 519 38 8  
600 840 770 36 20 622 42 8