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Metric Products

View All Backing Flanges Nut and Bolt Dimensions

Flange DN Size (mm) 3mm Gasket Flange Rating Flange Width (mm) Number of Flange Pairs Total Number of Flanges Number of Holes per Flange Length of Nut Washers x 2 Pitch x 3 Total Number of Bolts Diameter of Bolt Ideal Length of Bolt Nearest Standard Bolt Length
25 1 PN 16 10 1 2 4 8 1.6 1.75 4 M12 39 40
40 1 PN 16 10 1 2 4 13 2 2 4 M16 46 45
50 1 PN 16 10 1 2 4 13 2 2 4 M16 46 45
65 1 PN 16 10 1 2 4 13 2 2 4 M16 46 45
580 1 PN 16 10 1 2 8 13 2 2 8 M16 46 45
100 1 PN 16 10 1 2 8 13 2 2 8 M16 46 45
125 1 PN 16 12 1 2 8 13 2 2 8 M16 50 50
150 1 PN 16 12 1 2 8 16 2 2.5 8 M20 55 55
200 1 PN 16 12 1 2 12 16 2 2.5 12 M20 55 55
250 1 PN 16 16 1 2 12 19 2.5 3 12 M24 68 70
300 1 PN 16 19 1 2 12 19 2.5 3 12 M24 74 75
350 1 PN 16 22 1 2 16 19 2.5 3 16 M24 80 80
400 1 PN 16 22 1 2 16 22 2.5 3 16 M27 83 85
450 1 PN 16 25 1 2 20 22 2.5 3 20 M27 89 90
500 1 PN 16 25 1 2 20 24 2.5 3.5 20 M30 93 95
600 1 PN 16 25 1 2 20 26 3 3.5 20 M33 96 100
700 1 PN 16 25 1 2 24 26 3 3.5 24 M33 96 100
800 1 PN 16 25 1 2 24 29 3 4 24 M36 100 100
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