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Industrial Engineered

Bolting Dimensions for 600 lb. Flanges

Nom
Pipe
Size

Diam
of Bolt
Circle

Diam
of
Bolts

 Nbr.
of
Bolts

Length of Studs 1/4" Raised Face
0.50 2.625 0.500 4 3.000
0.75 3.250 0.625 4 3.250
1.00 3.500 0.625 4 3.500
1.25 3.875 0.625 4 3.750
1.50 4.500 0.750 4 4.000
2.00 5.000 0.625 8 4.000
2.50 5.875 0.750 8 4.500
3.00 6.625 0.750 8 4.750
3.50 7.250 0.875 8 5.250
4.00 8.500 0.875 8 5.500
5.00 10.500 1.000 8 6.250
6.00 11.500 1.000 12 6.500
8.00 13.750 1.125 12 7.500
10.00 17.000 1.250 16 8.250
12.00 19.250 1.250 20 8.500
14.00 20.750 1.375 20 9.000
16.00 23.750 1.500 20 9.750
18.00 25.750 1.625 20 10.500
20.00 28.500 1.625 24 11.250
22.00 30.625 1.750 24 12.000
24.00 33.000 1.875 24 12.750
26.00 36.000 1.875 28 13.250
30.00 40.250 2.000 28 14.000
34.00 44.500 2.250 28 15.000
36.00 47.000 2.500 28 15.750
42.00 53.750 2.750 28 17.500
Stud lengths for lap joint flanges are equal to lengths shown minus 0.5"plus the thickness of two laps of the stub ends.
 
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