Flanges

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Flage Facing Nominal Pipe Size Inches Quantity of Stud Bolts, and Size (Inches) Required per Steel Flanged Joint
150-Pound 300-Pound 400-Pound 600-Pound 900-Pound 1500-Pound
Raised or Male (*) 1/2 4 -1/2 x 2 1/4 4 - 1/2 x 2 1/2 4 - 1/2 x 3 4 - 3/4 x 4
3/4 4 - 1/2 x 2 1/4 4 - 5/8 x 2 3/4 4 - 5/8 x 3 1/4 4 - 3/4 x 4 1/4
1 4 - 1/2 x 2 1/2 4 - 5/8 x 3 4 - 5/8 x 3 1/2 4 - 7/8 x 4 3/4
1 1/4 4 - 1/2 x 2 1/2 4 - 5/8 x 3 4 - 5/8 x 3 3/4 4- 7/8 x 4 3/4
1 1/2 4 - 1/2 x 2 3/4 4 - 3/4 x 3 1/2 4 - 3/4 x 4 4 - 1 x 5 1/4
2 4 - 5/8 x 3 8 - 5/8 x 3 1/4 8 - 5/8 x 4 8 - 7/8 x 5 1/2
2 1/2 4 - 5/8 x 3 1/4 8 - 3/4 x 3 3/4 8 - 3/4 x 4 1/2 8 - 1 x 6
3 4 5/8 x 3 1/2 8 - 3/4x x4 8 - 3/4 x 4 3/4 8 - 7/8 x 5 1/2 8 - 1/8 x 6 3/4
3 1/2 8 - 5/8 x 3 1/2 8 - 3/4 x 4 1/4 8 - 7/8 x 5 1/4
4 8 - 5/8 x 3 1/2 8 - 3/4 x 4 1/4 8 - 7/8 x 5 1/4 8 - 7/8 x 5 1/2 8 - 1/8x 6 1/2 8 - 1 1/4 x 7 1/2
5 8 - 3/4 x 3 3/4 8 - 3/4 x 4 1/2 8 - 7/8 x 5 1/2 8 - 1 x 6 1/4 8 - 1 1/4x 7 1/4 8 - 1 1/2 x 9 1/2
6 8 - 3/4 x 3 3/4 12 - 3/4 x 4 3/4 12 - 7/8 x 5 3/4 12 - 1 x 6 1/2 12 - 1 1/8 x 7 1/2 12 - 1 3/8 x 10
8 8 - 3/4 x 4 12- 7/8 x 5 1/4 12 - 1 x 6 1/2 12 - 1 1/8 x 7 1/2 12 -1 3/8 x 8 1/2 12 - 1 5/8 x 11 1/4
10 12 - 7/8 x 4 1/2 16- 1 x 6 16 - 1 1/8 x 7 1/4 16 - 1 1/4 x 8 1/4 16 - 1 3/8 x 9 12 - 1 7/8 x 13 1/4
12 12 - 7/8 x 4 1/2 16- 1 1/8 x 6 1/2 16 - 1 1/4 x 7 3/4 20 - 1 1/4 x 8 1/2 20 -1 3/8 x 9 3/4 16 - 2 x 14 3/4
14 12 - 1 x 5 20- 1 1/8 x 6 3/4 20 - 1 1/4 x 8 20 - 1 3/8 x 9 20 - 1 1/2 x 10 1/2 16 - 2 1/4 x 16
16 16 - 1 x 5 1/4 20 - 1 1/4 x 7 1/4 20 - 1 3/8 x 8 1/2 20 - 1 1/2 x 9 3/4 20 - 1 5/8 x 11
18 16 - 1 1/8 x 5 3/4 24 - 1 1/4 x 7 1/2 24 - 1 3/8 x 8 3/4 20 - 1 5/8 x 10 1/2 20 - 1 7/8 x 12 3/4
20 20 -1 1/8 x 6 24 - 1 1/4 x 8 24 - 1 1/2 x 9 1/2 24 - 1 5/8 x 11 1/4 20 - 2 x 13 1/2
24 20 - 1 1/4 x 6 3/4 24 - 1 1/2 x 9 24 - 1 3/4 x 10 1/2 24 - 1 7/8 x 12 3/4 20 - 2 1/2 x 17
Ring Joint 1/2 4 - 1/2 x 3 4 - 1/2 x 3 4 - 3/4 x 4
3/4 4 - 5/8 x 3 1/4 4 - 5/8 x 3 1/4 4 - 3/4 x 4 1/4
1 4 - 1/2 x 3 4 - 5/8 x 3 1/2 4 - 5/8 x 3 1/2 4 - 7/8 x 4 3/4
1 1/4 4 - 1 /2 x 3 4 - 5/8 x 3 1/2 4 - 5/8 x 3 3/4 4 - 7/8 x 4 3/4
1 1/2 4 - 1/2 x 3 1/4 4 - 3 /4 x 4 4 - 3/4 x 4 4 - 1 x 5 1/4
2 4 - 5/8 x 3 1/2 8 - 5/8 x 4 8 - 5/8 x 4 1/4 8 - 7/8 x 5 3/4
2 1/2 4 -5/8 x 3 3/4 8 - 3/4 x 4 1/2 8 - 3/4 x 4 3/4 8 - 1 x 6 1/4
3 4 - 5/8 x 4 8 - 3/4 x 4 3/4 8 - 3/4 x 5 8 - 7/8 x 5 3/4 8 - 1 1/8 x 7
3 1/2 8 - 5/8 x 4 8 - 3/4 x 5 8 - 7/8 x 5 1/2
4 8 - 5/8 x 4 8 - 3/4 x 5 8 - 7/8 x 5 1/2 8 - 7/8 x 5 3/4 8 - 1/8 x 6 3/4 8 - 1 1/4 x 7 3/4
5 8 - 3/4 x 4 1/4 8 - 3/4 x 5 1/4 8 - 7/8 x 5 3/4 8 - 1 x 6 1/2 8 - 1 1/4 x 7 1/2 8 - 1 1/2 x 9 3/4
6 8 - 3/4 x 4 1/4 12 - 3/4 x 5 1/2 12 - 7/8 x 6 12 - 1 x 6 3/4 12 - 1 1/8 x 7 1/2 12 - 1 3/8 x 10 1/4
8 8 - 3/4 x 4 1/2 12 - 7/8 x 6 12 -1 x 6 3/4 12 - 1 1/8 x 7 3/4 12 - 1 3/8 x 8 3/4 12 - 1 5/8 x 11 3/4
10 12 - 7/8 x 5 16 - 1 x 6 3/4 16 - 1 1/8 x 7 1/2 16 - 1 1/4 x 8 1/2 16 - 1 3/8 x 9 1/4 12 - 1 7/8 x 13 1/2
12 12 - 7/8 x 5 16 - 1 1/8 x 7 1/4 16 - 1 1/4 x 8 20 - 1 1/4 x 8 3/4 20 - 1 3/8 x 10 16 - 2 x 15 1/4
14 12 - 1 x 5 1/2 20 - 1 1/8 x 7 1/2 20 - 1 1/4 x 8 1/4 20 - 1 3/8 x 9 1/4 20 - 1 1/2 x 11 16 - 2 1/4 x 16 3/4
16 16 - 1 x 5 3/4 20 - 1 1/4 x 8 20 - 1 3/8 x 8 3/4 20 - 1 1/2 x 10 20 - 1 5/8 x 11 1/2
18 16 - 1 1/8 x 6 1/4 24 - 1 1/4 x 8 1/4 24 - 1 3/8 x 9 20 - 1 5/8 x 10 3/4 20 - 1 7/8 x 13 1/4
20 20 - 1 1/8 x 6 1/2 24 - 1 1/4 x 8 3/4 24 - 1 1/2 x 9 3/4 24 - 1 5/8 x 11 1/2 20 - 2 x 14
24 20 - 1 4/4 x 7 1/4 24 - 1 1/2 x 10 24 - 1 3/4 x 11 24 - 1 7/8 x 13 1/4 20 - 2 1/2 x 17 3/4
Male & Female or Tongue & Groove 1/2 4 - 1/2 x 2 3/4 4 - 3/4 x 3 3/4
3/4 4 - 5/8 x 3 4 - 3/4 x 4
1 4 - 5/8 x 3 1/4 4 - 7/8 x 4 1/2
1 1/4 4 - 5 /8 x 3 1/2 4 - 7/8 x 4 1/2
1 1/2 4 - 3/4 x 3 3/4 4 - 1 x 5
2 8 - 5/8 x 3 3/4 8 - 7/8 x 5 1/4
2 1/2 8 - 3/4 x 4 1/4 8 - 1 x 5 3/4
3 8 - 3/4 x 4 1/2 8 - 7/8 x 5 1/4 8 - 1 1/8 x 6 1/2
3 1/5 8 - 7/8 x 5
4 8 - 7/8 x 5 8 - 7/8 x 5 1/4 8 - 1 1/8 x 6 1/4 8 - 1 1/4 x 7 1/4
5 8 - 7/8 x 5 1/4 8 - 1 x 6 8 - 1 1/4 x 7 8 - 1 1/2 x 9 1/4
6 12 - 7 /8 x 5 1/2 12 - 1 x 6 1/4 12 - 1 1/8 x 7 1/4 12 - 1 3/8 x 9 3/4
8 12 - 1 x 6 1/4 12 - 1 1/8 x 7 1/4 12 - 1 3/8 x 8 1/4 12 - 1 5/8 x 11
10 16 - 1 1/8 x7 16 - 1 1/4 x 8 16 - 1 3/8 x 8 3/4 12 - 1 7/8 x 13
12 16 - 1 1/4 x 7 1/2 20 - 1 1/4 x 8 1/4 20 - 1 3/8 x 9 1 /2 16 - 2 x 14 1/2
14 20 - 1 1/4 x 7 3/4 20 - 1 3/8 x 8 3/4 20 - 1 1/2 x 10 1/4 16 - 2 1/4 x 15 3/4
16 20 - 1 3/8 x 8 1/4 20 - 1 1/2 x 9 1/2 20 - 1 5/8 x 10 3/4
18 24 - 1 3/8 x 8 1/2 20 - 1 5/8 x 10 1/4 20 - 1 7/8 x 12 1/2
20 24 - 1 1/2 x 9 1/4 24 - 1 5/8 x 11 20 - 2 x 13 1/4
24 24 - 1 3/4 x 10 1/4 24 - 1 7/8 x 12 1/2 20 - 2 1/2 x 16 3/4
*150 and 300-poung classes with 1/16-inch raised face and
400 to 1500-punds classes with 1/4-inch large male face.
Quantity and Sizes of Stud Bolts
For ASA Steel Flanged Joints