Forged Steel Flanges - Stud Reference Charts

The number, diameter and length of studs for forged steel flanges 150 lb, 300 lb, 400 lb, 600lb, 900 lb and 1500 lb

Forged Steel Flanges - 150 lb

NPS (in)	No. of Studs	Diameter of Stud (in)	Length of Stud (in)
1/2	4	1/2	2-1/2
3/4	4	1/2	2-1/2
1	4	1/2	2-3/4
1-1/4	4	1/2	2-3/4
1-1/2	4	1/2	3
2	4	5/8	3-1/2
2-1/2	4	5/8	3-3/4
3	4	5/8	3-3/4
3-1/2	8	5/8	3-3/4
4	8	5/8	3-3/4
5	8	3/4	4
6	8	3/4	4-1/4
8	8	3/4	4-1/2
10	12	7/8	4-3/4
12	12	7/8	5
14	12	1	5-1/2
16	16	1	5-1/2
18	16	1-1/8	6

Forged Steel Flanges - 300 lb

NPS (in)	No. of Studs	Diameter of Stud (in)	Length of Stud (in)
1/2	4	1/2	2-3/4
3/4	4	5/8	3-1/4
1	4	5/8	3-1/4
1-1/4	4	5/8	3-1/2
1-1/2	4	3/4	3-3/4
2	8	3/4	3-3/4
2-1/2	8	3/4	4-1/4
3	8	3/4	4-1/2
3-1/2	8	3/4	4-1/2
4	8	3/4	4-3/4
5	8	3/4	5
6	12	3/4	5
8	12	7/8	5-3/4
10	16	1	6-1/2
12	16	1	7
14	20	1-1/8	7-1/4
16	20	1-1/4	7-3/4
18	24	1-1/4	8

Forged Steel Flanges - 400 lb

NPS (in)	No. of Studs	Diameter of Stud (in)	Length of Stud (in)
1/2	4	1/2	3-1/4
3/4	4	5/8	3-3/4
1	4	5/8	3-3/4
1-1/4	4	5/8	4
1-1/2	4	3/4	4-1/2
2	8	3/4	4-1/2
2-1/2	8	3/4	5
3	8	3/4	5-1/4
3-1/2	8	7/8	5-3/4
4	8	7/8	5-3/4
5	8	7/8	6
6	12	7/8	6-1/4
8	12	1	7
10	16	1-1/8	7-3/4
12	16	1-1/4	8-1/4
14	20	1-1/4	8-1/2
16	20	1-3/8	9
18	24	1-3/8	9-1/4

Forged Steel Flanges - 600 lb

NPS (in)	No. of Studs	Diameter of Stud (in)	Length of Stud (in)
1/2	4	1/2	3-1/4
3/4	4	5/8	3-3/4
1	4	5/8	3-3/4
1-1/4	4	5/8	4
1-1/2	4	3/4	4-1/2
2	8	3/4	4-1/2
2-1/2	8	3/4	5
3	8	3/4	5-1/4
3-1/2	8	7/8	5-3/4
4	8	7/8	6
5	8	1	6-3/4
6	12	1	7
8	12	1-1/8	7-3/4
10	16	1-1/4	8-3/4
12	20	1-1/4	9
14	20	1-3/8	9-1/2
16	20	1-1/2	10-1/4
18	20	1-5/8	11

Forged Steel Flanges - 900 lb

NPS (in)	No. of Studs	Diameter of Stud (in)	Length of Stud (in)
1/2	4	3/4	4-1/2
3/4	4	3/4	4-3/4
1	4	7/8	5-1/4
1-1/4	4	7/8	5-1/4
1-1/2	4	7/8	5-3/4
2	8	7/8	6
2-1/2	8	1	6-1/2
3	8	1	6
4	8	1-1/8	7
5	8	1-1/8	7-3/4
6	12	1-1/8	7-3/4
8	12	1-3/8	9
10	16	1-3/8	9-1/2
12	20	1-3/8	10-1/4
14	20	1-1/2	11
16	20	1-5/8	11-1/2
18	20	1-7/8	13

Forged Steel Flanges - 1500 lb

NPS (in)	No. of Studs	Diameter of Stud (in)	Length of Stud (in)
1/2	4	3/4	4-1/2
3/4	4	3/4	4-3/4
1	4	7/8	5-1/4
1-1/4	4	7/8	5-1/4
1-1/2	4	7/8	5-3/4
2	8	7/8	6
2-1/2	8	1	6-1/2
3	8	1-1/8	7-1/4
4	8	1-1/4	8
5	8	1-1/2	10
6	12	1-3/8	10-1/2
8	12	1-5/8	11-3/4
10	12	1-7/8	13-1/2
12	16	2	15
14	16	2-1/4	16-1/2
16	16	2-1/4	18
18	16	2-3/4	19-1/2

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